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# Oxxius

## Sitemaps
[XML Sitemap](https://www.oxxius.com/sitemap_index.xml): Includes all crawlable and indexable pages.

## Posts
- [Oxxius Appoints Scott Gibbs as General Manager of Oxxius Inc. in the United States](https://www.oxxius.com/news/company-news/oxxius-inc-general-manager-scott-gibbs/): Oxxius announces a key appointment for its United States operations: Scott Gibbs joins as General Manager of Oxxius Inc., the American subsidiary headquartered in Williston, Vermont. With over 35 years of experience in demanding industrial environments — spanning semiconductors, precision optical filters and life sciences — Scott Gibbs brings Oxxius Inc. the operational expertise and management vision needed to accelerate growth across North America. `
- [European photonics M&A: Thierry on industry consolidation](https://www.oxxius.com/news/company-news/thierry-georges-ma-european-photonics/): In the latest edition of the EPIC Spotlight – Photonics Business News, Thierry Georges, Founder & President of Oxxius, makes a clear case: mergers and acquisitions are becoming the primary growth engine for European photonics. In a fragmented industry, consolidation through strategic M&A and partnerships is emerging as the key lever for scaling innovation — from AI infrastructure and quantum technologies to defense systems. The editorial covers notable recent transactions, including Exosens/Emberion, Marvell/Polariton, and AMS Technologies/Bay Photonics. Published following the EPIC SUMMIT in Juan-les-Pins, this editorial positions Oxxius at the forefront of strategic thinking in the European photonics ecosystem.
- [Underwater LiDAR for Deep-Sea Exploration: Inside Oxxius’s Role in the ID-GF Project](https://www.oxxius.com/news/rd-projects/underwater-lidar-for-deep-sea-exploration-id-gf/): The ID-GF project (Imageur Distribué Grands Fonds – Deep-Sea Distributed Imager) brings together three specialized SMEs — FMC Composites, Oxxius, and HEXA-H — alongside two leading maritime research institutions, ENSTA Bretagne and Ifremer. The goal: deploy a large distributed array of networked, geolocated hybrid underwater floats capable of laser-based LiDAR imaging and optical communication from the seafloor. Oxxius is responsible for the LiDAR subsystem, underwater optical communication modules, and their integration inside the floats. Potential applications range from oceanographic monitoring (turbulence, marine mammals, fisheries) to infrastructure surveillance, pollution tracking, and defense systems such as ultra-low-frequency antenna arrays. Funded by BPI France under the France 2030 program, ID-GF is Oxxius's third underwater drone communication project, following the DGA/RAPID programs LAMPARO and CHIMAERA.
- [Visible Lasers for Quantum Technologies: How QoQeliQo Breaks the Linewidth Barrier](https://www.oxxius.com/news/rd-projects/qoqeliqo-project-next-generation-visible-lasers-for-quantum-technologies/): Quantum applications — atomic clocks, quantum sensors, computing, and molecular spectroscopy — demand lasers with ultra-high spectral purity and sub-kHz linewidths. Yet most commercially available visible lasers still exhibit intrinsic linewidths in the tens of kHz, far short of what the most advanced quantum systems require. The QoQeliQo project, launched in October 2024, addresses this gap by applying Stimulated Brillouin Scattering (SBS) to achieve linewidth reduction of at least 100× compared to current sources — a first-ever industrial implementation of this technique in the visible range. The result: watt-level visible lasers with intrinsic linewidths approaching 1 Hz. Oxxius contributes fast frequency modulation on DPSS lasers, new single-frequency sources, and power scaling — alongside partners Institut Foton and SILENTSYS. The project is funded by Bpifrance, Région Pays de la Loire, and the French Government under the France 2030 Plan.
- [Oxxius Announces the Strategic Acquisition of US-Based Company 89 North](https://www.oxxius.com/news/company-news/oxxius-acquires-89-north/): Oxxius has announced the strategic acquisition of 89 North, a US-based specialist in advanced laser illumination and imaging systems, previously a subsidiary of Chroma Technology. The transaction marks a major milestone in Oxxius's international growth strategy, expanding its laser combiner portfolio and establishing a direct operational presence in North America. By integrating 89 North's high-power diode laser illuminators, Oxxius significantly strengthens its position in the life sciences microscopy market — from standard applications to the most demanding configurations. In return, 89 North gains access to Oxxius's established network in European and Asian markets. "This acquisition accelerates our next stage of growth, increases our visibility and strengthens our competitiveness for the long term," said Thierry Georges, Oxxius President and CTO.
- [LUMEN project explores visible fiber laser technology](https://www.oxxius.com/news/rd-projects/lumen-project-explores-visible-fiber-laser-technology/): High-power visible fiber lasers in the 1–10 watt range are today a missing link in optical instrumentation — current silica-based infrared solutions cannot operate in the visible spectrum. The LUMEN project, launched in May 2025 and funded under the France 2030 Plan, tackles this gap head-on using fluoride glass fiber technology, a material first developed in Brittany over 50 years ago. Bringing together six complementary partners — Le Verre Fluoré, Oxxius, Alphanov, Université Jean Monnet, CORIA, and CIMAP — LUMEN adapts proven silica fiber architectures (double-clad fibers, Fiber Bragg Gratings, pump/signal combiners) to the visible range. Target applications include super-resolution microscopy, DNA sequencing, biomedical imaging, and quantum control of atoms.
- [High Power Compact Visible Lasers: Oxxius Introduces New versions up to 1 W](https://www.oxxius.com/news/products-innovations/oxxius-introduces-more-powerful-versions-of-its-compact-visible-lasers/): Oxxius announces new high-power versions of its visible lasers: Green – up to 800 mW CW, Yellow (561 nm) – up to 500 mW CW, and Red – up to 1 W CW.
- [Oxxius earns ISO 9001 certification](https://www.oxxius.com/news/company-news/oxxius-earns-iso-9001-certification/): For a laser manufacturer like Oxxius, ISO 9001 certification provides customers and partners with a formal guarantee that every laser product we ship has been designed, tested and delivered according to a rigorously controlled set of processes, regardless of order volume, product complexity or delivery destination.
- [Life Science Laser Solutions: How the LaCIO Project Scaled Oxxius’s Innovation and Production](https://www.oxxius.com/news/rd-projects/life-science-laser-solutions-lacio-project/): Life science laser solutions covering super-resolution microscopy, flow cytometry, and DNA sequencing require both high-performance optics and scalable manufacturing. The LaCIO project, supported by France Relance over 32 months (September 2021 – May 2025), tackled both fronts for Oxxius. On the production side, the acquisition of a state-of-the-art manufacturing robot doubled output, enabling Oxxius to handle demand peaks, reduce costs, and guarantee consistent quality at scale. On the innovation side, new crystals and an advanced monolithic cavity assembly process boosted power across the entire DPSS laser range — making Oxxius lasers the world leaders in power performance. Today, Oxxius is the only French company offering continuous visible laser sources specifically designed for optical instrumentation in life sciences, with a growing presence in cytometry and DNA sequencing markets.
- [Deep UV Laser and Blue Sources from Nd-Doped Fiber: The NeoDUV Project](https://www.oxxius.com/news/rd-projects/deep-uv-laser-neoduv-project-nd-doped-fiber/): The NeoDUV project aims to develop novel multi-watt-level blue/UV laser sources based on Nd-doped fiber with optimized non-linear conversion stages.
- [First Diode-Pumped Samarium Laser in the Visible Range](https://www.oxxius.com/news/products-innovations/first-diode-pumped-samarium-laser-in-the-visible-range/): Development of the first diode-pumped samarium laser emitting in the visible range, operating at 605 nm in the orange spectrum.
- [Multicolor Fluorescence Microscopy for Live-Cell Biology: The FEM2BIO Project](https://www.oxxius.com/news/rd-projects/multicolor-fluorescence-microscopy-fem2bio/): Multicolor fluorescence microscopy capable of simultaneously tracking five proteins in living cells — that is the core ambition of FEM2BIO (Extended Fiber for Multicolor Microscopy in Biology). Developed by Oxxius in partnership with Photonics Bretagne, IDIL and the University of Rennes (IGDR), and funded by Région Bretagne and Lannion-Trégor Communauté, the project pushes the boundaries of live-cell imaging to improve the analysis of biological pathologies, particularly cancer, and accelerate the development of targeted therapies.
- [UV Raman Spectroscopy for Medical Detection: inside the UV4LIFE project](https://www.oxxius.com/news/rd-projects/uv-raman-spectroscopy-medical-detection-uv4life/): UV Raman spectroscopy offers superior selectivity for detecting cancer cells, bacterial infections and metabolic disorders compared to near-infrared excitation — but its adoption has long been limited by the size and energy consumption of Helium-Cadmium gas lasers, 200× larger and 20× more energy-intensive than solid-state alternatives. The UV4LIFE project directly addresses this bottleneck by developing compact solid-state UV laser sources at 320 nm and 375 nm, enabling researchers to use these wavelengths in a Raman spectrometer for medical diagnostic applications. Oxxius leads the project and develops the single-frequency 320 nm laser, supported by Institut Foton, Exail and the INSERM CIMIAD team. Funded by Région Bretagne, Lannion-Trégor Communauté and the European FEDER fund, UV4LIFE also targets additional applications including 2D material analysis, ink characterization, and UV fluorophore excitation for cytometry and microscopy.

## Pages
- [Resources](https://www.oxxius.com/resources/): From real-world deployments to peer-reviewed research, this section brings together the technical documentation that matters to scientists and engineers working with compact lasers. Whether you are evaluating a laser for a specific application or looking for published data on wavelength performance, you will find both here.
- [Laser Combiners](https://www.oxxius.com/laser-combiners/)
- [Laser case studies](https://www.oxxius.com/resources/case-studies/): Discover how Oxxius laser sources and wavelength combiners perform in real scientific and industrial environments. These laser case studies cover a wide range of applications — from nanoparticle characterization and spray measurement to confocal microscopy. Each case study details the technical challenge, the Oxxius solution chosen and the results achieved by our customers and partners worldwide.
- [Contact our Support Team](https://www.oxxius.com/laser-support-contact/)
- [Products](https://www.oxxius.com/products/)
- [Demo](https://www.oxxius.com/demo/)
- [Laser Doppler Velocimetry (LDV)](https://www.oxxius.com/applications/measurement-metrology/laser-doppler-velocimetry-ldv/): Filtered Rayleigh Scattering (FRS) is a technique used to remotely measure the thermodynamic properties of a gas flow, particularly in situations where seeding is not feasible. Oxxius lasers provide the powerful and precise excitation required for this advanced diagnostic method.
- [Careers](https://www.oxxius.com/the-company/careers/): Oxxius is a photonics laser company based in Lannion, France, and we are always looking for talented professionals to join our team.Whether your background is in optics, laser physics, product design, marketing, business development or customer support, we offer a dynamic environment where innovation, precision and collaboration drive everything we do.
- [Shearography](https://www.oxxius.com/applications/measurement-metrology/shearography/): To ensure the quality of semiconductor materials, it is essential to characterize them at multiple stages of fabrication and detect defects as early as possible. Spectroscopic photoluminescence and Raman spectroscopy are two such methods. Both are contactless, non-destructive, and highly effective for revealing material defects. Oxxius is a trusted provider of stable, accurate laser sources, essential for carrying out these techniques successfully.
- [Technical publications](https://www.oxxius.com/technical-publications/): Oxxius has been contributing to the scientific community through peer-reviewed laser technical publications since 2004. This library of 40+ papers covers our core research areas: DPSS lasers, visible and UV fiber lasers, single-frequency sources, wavelength combiners, and their applications in life sciences, including flow cytometry, super-resolution microscopy and DNA sequencing, as well as measurement and metrology.
- [Support FAQ](https://www.oxxius.com/support/laser-technical-support-faq/): This laser technical support FAQ brings together answers to the most frequently asked questions about Oxxius products, covering warranty conditions, repair procedures, spare parts ordering, software downloads, and on-site service options.
- [Warranty and Documentation](https://www.oxxius.com/warranty-and-documentation/): This page centralizes all essential resources for Oxxius laser users: laser software download for Windows, user manuals available on request, and full warranty documentation. Whether you are setting up your laser for the first time or looking for support on an existing installation, everything you need is accessible here or through our dedicated support team.
- [Service and Support](https://www.oxxius.com/laser-service-and-support/): Laser service and support at Oxxius covers the entire lifecycle of your laser system: from installation and daily operation to remote troubleshooting and on-site repairs. ISO 9001 certified and backed by a global distributor network, Oxxius provides clear, reliable and efficient laser assistance wherever you are in the world, with a dedicated team based in France and in the US.
- [Our technology](https://www.oxxius.com/the-company/our-technology/): Monolithic DPSS laser technology is at the heart of every Oxxius laser. Protected by more than ten patents, this proprietary alignment-free architecture combines a glue-less solid-state construction with optical contacting, a process that bonds crystal interfaces at the molecular level to deliver exceptional beam quality, robustness and long-term wavelength stability in an ultra-compact format.
- [Certifications](https://www.oxxius.com/the-company/iso-9001-certified-laser-manufacturer/): As an ISO 9001 certified laser manufacturer, Oxxius applies the highest quality standards across every stage of its operations: from design and manufacturing to customer support. This certification, alongside full RoHS and REACH compliance, reflects our commitment to delivering reliable, safe and environmentally responsible photonics products to customers in over 40 countries.
- [Collaborative R&D projects](https://www.oxxius.com/the-company/collaborative-laser-rd-projects/): By working with research institutions, industry partners, and academic teams, we contribute our expertise in laser and photonics solutions. These collaborations support the creation of practical applications and new approaches in optical technologies. Our involvement focuses on providing technical knowledge and solutions that help move projects forward.
- [Worldwide presence](https://www.oxxius.com/laser-distributors-worldwide/): Oxxius laser products are available through a global network of authorized distributors covering Europe, North America, Asia and Oceania.
- [Our company](https://www.oxxius.com/the-company/): As a high performance laser manufacturer headquartered in Lannion, France, Oxxius has been designing, manufacturing and supplying advanced laser solutions since 2002. Our products are used in over 40 countries by universities, research institutes and leading OEMs, making Oxxius a trusted partner in life sciences, scientific research and industrial applications worldwide.
- [Raman Spectroscopy](https://www.oxxius.com/applications/measurement-metrology/raman-spectroscopy/): Filtered Rayleigh Scattering (FRS) is a technique used to remotely measure the thermodynamic properties of a gas flow, particularly in situations where seeding is not feasible. Oxxius lasers provide the powerful and precise excitation required for this advanced diagnostic method.
- [Fluorescence microscopy](https://www.oxxius.com/applications/life-science/fluorescence-microscopy/): Fluorescence microscopy excites fluorophores with light and detects their emitted fluorescence. Oxxius lasers and wavelength combiners provide the stability, beam quality and flexibility required across modern modalities.
- [Dynamic Light Scattering](https://www.oxxius.com/applications/measurement-metrology/dynamic-light-scattering/): Dynamic Light Scattering (DLS) is a technique used to measure the size of small particles suspended in a liquid. Oxxius lasers provide the stable, low-noise illumination required to perform these measurements with precision.
- [Confocal microscopy](https://www.oxxius.com/applications/life-science/confocal-microscopy/): Filtered Rayleigh Scattering (FRS) is a technique used to remotely measure the thermodynamic properties of a gas flow, particularly in situations where seeding is not feasible. Oxxius lasers provide the powerful and precise excitation required for this advanced diagnostic method.
- [Brillouin Spectroscopy](https://www.oxxius.com/applications/measurement-metrology/brillouin-spectroscopy/): Brillouin spectroscopy uses laser light to quantify the mechanical properties of a medium. Oxxius lasers make this delicate measurement possible.
- [Events](https://www.oxxius.com/events/): See below where to meet us next!
- [Surface Profiling](https://www.oxxius.com/applications/measurement-metrology/surface-profiling-profilometry/): To ensure the quality of semiconductor materials, it is essential to characterize them at multiple stages of fabrication and detect defLaser-based profiling measures and maps height variations of just a few nanometers across large surfaces. Oxxius lasers provide the precise wavelength and stability required for these measurements in industrial environments.
- [Semiconductor analysis](https://www.oxxius.com/applications/measurement-metrology/semiconductor-analysis/): To ensure the quality of semiconductor materials, it is essential to characterize them at multiple stages of fabrication and detect defects as early as possible. Spectroscopic photoluminescence and Raman spectroscopy are two such methods. Both are contactless, non-destructive, and highly effective for revealing material defects. Oxxius is a trusted provider of stable, accurate laser sources, essential for carrying out these techniques successfully.
- [Filtered Rayleigh Scattering (FRS)](https://www.oxxius.com/applications/measurement-metrology/filtered-rayleigh-scattering-frs/): Filtered Rayleigh Scattering (FRS) is a technique used to remotely measure the thermodynamic properties of a gas flow, particularly in situations where seeding is not feasible. Oxxius lasers provide the powerful and precise excitation required for this advanced diagnostic method.
- [Lasers](https://www.oxxius.com/lasers/)
- [Contact](https://www.oxxius.com/contact-us/)
- [Measurement & Metrology](https://www.oxxius.com/applications/measurement-metrology/): Precision is at the core of Oxxius laser technology, providing consistent, low-noise light sources essential for accurate calibration, sensing or high-resolution metrology tasks.
- [Life Science](https://www.oxxius.com/applications/life-science/): Designed for demanding biological environments, Oxxius lasers combine spectral accuracy and long-term stability to deliver reliable performance in imaging, spectroscopy and diagnostic systems.
- [Applications](https://www.oxxius.com/applications/): Built for precision applications, Oxxius lasers provide stable, low-noise light sources optimized for measurement and metrology.
- [Support](https://www.oxxius.com/support/)
- [News](https://www.oxxius.com/news/): Product launches, application insights, innovations and company milestones. Discover what’s new at Oxxius!
- [Oxxius](https://www.oxxius.com/): The LDI product line by 89 North is now part of Oxxius.

## Produits Laser
- [FlexxRay 488 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-488-nm/)
- [FlexxRay 473 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-473-nm/)
- [FlexxRay 405 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-405-nm/)
- [FlexxRay 450 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-450-nm/)
- [StaxxBeam 473 nm](https://www.oxxius.com/single-frequency-lasers/staxxbeam-473-nm/)
- [StaxxBeam 830 nm (pigtailed)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-830-nm-pigtailed/)
- [MaxxPower 980 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-980-nm/)
- [MaxxPower 940 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-940-nm/)
- [MaxxPower 830 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-830-nm/)
- [MaxxPower 785 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-785-nm/)
- [MaxxPower 750 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-750-nm/)
- [MaxxPower 638 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-638-nm/)
- [MaxxPower 520 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-520-nm/)
- [MaxxPower 488 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-488-nm/)
- [MaxxPower 473 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-473-nm/)
- [MaxxPower 450 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-450-nm/)
- [MaxxPower 425 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-425-nm/)
- [MaxxPower 405 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-405-nm/)
- [MaxxPower 375 nm](https://www.oxxius.com/high-power-diode-modules/maxxpower-375-nm/)
- [StaxxBeam 785 nm (adjustable power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-785-nm-adjustable-power/)
- [StaxxBeam 830 nm](https://www.oxxius.com/single-frequency-lasers/staxxbeam-830-nm/)
- [StaxxBeam 785 nm (fixed power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-785-nm-fixed-power/)
- [StaxxBeam 633 nm](https://www.oxxius.com/single-frequency-lasers/staxxbeam-633-nm/)
- [StaxxBeam 1064 nm (adjustable power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-1064-nm-adjustable-power/)
- [StaxxBeam 1064 nm (fixed power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-1064-nm-fixed-power/)
- [StaxxBeam 561 nm (adjustable power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-561-nm-adjustable-power/)
- [StaxxBeam 561 nm (fixed power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-561-nm-fixed-power/)
- [StaxxBeam 553 nm (adjustable power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-553-nm-adjustable-power/)
- [StaxxBeam 553 nm (fixed power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-553-nm-fixed-power/)
- [StaxxBeam 532 nm (adjustable power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-532-nm-adjustable-power/)
- [StaxxBeam 532 nm (fixed power)](https://www.oxxius.com/single-frequency-lasers/staxxbeam-532-nm-fixed-power/)
- [FlexxRay 1064 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-1064-nm/)
- [FlexxRay 980 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-980-nm/)
- [FlexxRay 915 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-915-nm/)
- [FlexxRay 830 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-830-nm/)
- [FlexxRay 808 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-808-nm/)
- [FlexxRay 785 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-785-nm/)
- [FlexxRay 730 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-730-nm/)
- [FlexxRay 690 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-690-nm/)
- [FlexxRay 660 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-660-nm/)
- [FlexxRay 642 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-642-nm/)
- [FlexxRay 640 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-640-nm/)
- [FlexxRay 638 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-638-nm/)
- [FlexxRay 633 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-633-nm/)
- [FlexxRay 607 nm](https://www.oxxius.com/cw-modulated-lasers/flexxray-607-nm/)
- [FlexxRay 561 nm (adjustable power)](https://www.oxxius.com/cw-modulated-lasers/flexxray-561-nm-adjustable-power/)
- [FlexxRay 561 nm (fixed power)](https://www.oxxius.com/cw-modulated-lasers/flexxray-561-nm-fixed-power/)
- [FlexxRay 553 nm (adjustable power)](https://www.oxxius.com/cw-modulated-lasers/flexxray-553-nm-adjustable-power/)
- [FlexxRay 553 nm (fixed power)](https://www.oxxius.com/cw-modulated-lasers/flexxray-553-nm-fixed-power/)
- [FlexxRay 532 nm (adjustable power)](https://www.oxxius.com/cw-modulated-lasers/flexxray-532-nm-adjustable-power/)

## Produits Combineurs
- [MixxWave High Power Laser Combiner](https://www.oxxius.com/high-power-diode-modules/mixxwave-with-high-power-lasers/)
- [MixxWave Single Frequency Laser Combiner](https://www.oxxius.com/single-frequency-lasers/mixxwave-with-single-frequency-lasers/)
- [MixxWave CW & Modulated Laser Wavelength Combiner](https://www.oxxius.com/cw-modulated-lasers/mixxwave-with-cw-and-modulated-lasers/)

## Carrières
- [Quality System Engineer](https://www.oxxius.com/the-company/careers/quality-system-engineer/): Oxxius is hiring a Quality System Engineer in Williston, VT. ISO 9001, QMS, continuous improvement. Full-time | $95K–$125K. Apply now.
- [Technicien/Technicienne assemblage & test lasers](https://www.oxxius.com/the-company/careers/technicien-assemblage-test-lasers-h-f/): Dans le cadre du plan de production et d'industrialisation des produits et à partir des consignes techniques formulées par l'ingénierie, vous exécutez les assemblages et les tests des sources lasers.

## Événements
- [SfN26](https://www.oxxius.com/events/sfn26-2/): Society for Neuroscience
- [Society of Biomolecular Imaging and Informatics](https://www.oxxius.com/events/society-og-biomolecular-imaging-and-informatics/): 13th annual conference
- [I2KxBINA 2026](https://www.oxxius.com/events/i2kxbina-2026/): BioImaging North America
- [EOS Annual Meeting 2026](https://www.oxxius.com/events/eos-annual-meeting-2026/)
- [BPS 2026](https://www.oxxius.com/events/bps-2026/): Biophysical Society 70th Annual Meeting
- [EMBL Course 2026](https://www.oxxius.com/events/embl-course-2026/): Brillouin microscopy for life science applications
- [Global Industrie](https://www.oxxius.com/events/global-industrie-2/)
- [OPTIQUE 2026](https://www.oxxius.com/events/optique-2026/): High Power Red Laser Based On PR3+ Doped Fluoride Fibers
- [IMC 21 – 21st International Microscopy Congress](https://www.oxxius.com/events/imc-21/)
- [Lisbon 22nd International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics](https://www.oxxius.com/events/lisbon-symposium/)
- [OPD 2026 – Optics and Photonics Days](https://www.oxxius.com/events/opd-2026-optics-and-photonics-days/)
- [SPIE Europe](https://www.oxxius.com/events/spie-europe/): Compact 532.2 nm and 555.8 nm lasers for iodine and ytterbium atomic clocks: simple frequency locking scheme based on monolithic cavity and low voltage electro-optical control
- [FOM 2026 – Focus On Microscopy](https://www.oxxius.com/events/fom-2026-focus-on-microscopy/)
- [Analytica 2026](https://www.oxxius.com/events/analytica-2026/)
- [Laser World Photonics China 2026](https://www.oxxius.com/events/laser-world-photonics-china-2026/): Site web salon
- [Photonics West](https://www.oxxius.com/events/photonics-west/): Site web salon
- [SPIE BiOS Expo](https://www.oxxius.com/events/spie-bios-expo/)

## Publications techniques
- [Nd concentration optimization for efficient low-cost 473-nm diode-pumped Nd: YAG/KNbO3 microchip assembly](https://www.oxxius.com/technical-publications/measurement-metrology/473nm-microchip-laser-nd-optimization/): Published at SPIE Photonics West 2004, this paper represents Oxxius's earliest systematic work on the 473 nm Nd:YAG/KNbO3 microchip architecture. By modelling and measuring thermal lensing, beam evolution, and Nd concentration effects within a 2.1 mm microchip assembly, the authors identified the key parameters limiting efficiency in linear cavity designs — and demonstrated 40 mW CW output at 473 nm with high beam quality (M² < 1.2) from under 900 mW of launched pump power.
- [Single mode 473 nm diode-pumped Nd: YAG/KNbO3 lasers](https://www.oxxius.com/technical-publications/measurement-metrology/single-mode-473-nm-diode-pumped-nd-yag-knbo3-lasers/): Diode pumped frequency doubled Nd: YAG microchip lasers should become an alternative to air-cooled argon ion lasers. The main issues to be solved are the long-term stabilization of the single frequency operation and the power control of the multi-frequency operation. These questions are mostly related to the laser dynamics. In this paper, we present an accurate modelling of the laser dynamics, including quenching processes, non uniform pumping, partial overlap of optical signals and excited-state populations, hole burning and type-I frequency doubling. We theoretically predict that even in multimode operation, only one mode is oscillating at a time, with a mode hoping at a rate of about 50 kHz. This behavior, quite different from the well known dynamics of intra-cavity type-II frequency doubled lasers (green noise) is experimentally confirmed. Diode pumped frequency doubled Nd: YAG 473 nm lasers based on a simple linear cavity are built and exhibit high output power (90+ mW) and record slope efficiency (45% with respect to absorbed power). The understanding of its 2-mode operation allowed us to stabilize the average output power. A similar laser was operated on a single frequency. No wav
- [Dynamics and long-term stability of single and multi-longitudinal mode 473-nm diode-pumped Nd:YAG/KNbO3 lasers](https://www.oxxius.com/technical-publications/measurement-metrology/473nm-laser-longitudinal-mode-stability/): Published at SPIE Photonics West 2005, this paper addresses one of the central engineering challenges in compact blue DPSS laser design: achieving reliable, long-term single-frequency operation at 473 nm in a Nd:YAG/KNbO3 microchip architecture. Through detailed modelling of laser dynamics — including hole burning, quenching, and type-I frequency doubling — the authors demonstrate that even in multimode operation, only one longitudinal mode oscillates at a time, switching at approximately 50 kHz. This behaviour, distinct from the well-known "green noise" of type-II intracavity doubling, was experimentally confirmed and informed Oxxius's approach to power-stable blue laser design.
- [Low-cost 7 mW CW 355-nm diode-pumped intracavity frequency-tripled microchip laser](https://www.oxxius.com/technical-publications/life-science/355-nm-cw-uv-laser/): This 2006 publication laid the technical groundwork for Oxxius's diode-pumped, single-frequency UV laser technology — principles still applied today in the company's CW 355 nm laser sources for semiconductor inspection and biological analysis.
- [Diode-pumped low noise CW 355-nm intra-cavity tripled laser up to 20 mW](https://www.oxxius.com/technical-publications/life-science/355nm-diode-pumped-intracavity-uv-laser/): This 2006 publication introduced Oxxius's diode-pumped intra-cavity third harmonic generation technology, delivering low-noise CW output at 355 nm — a wavelength widely used today in flow cytometry, confocal microscopy, and semiconductor inspection. The techniques described here remain foundational to Oxxius's current CW & modulated UV laser sources.
- [1064 nm oscillation under 914 nm intracavity pumping in Nd: YVO4 and sum-frequency mixing to reach blue range](https://www.oxxius.com/technical-publications/life-science/492nm-blue-laser-via-sum-frequency-mixing/): Presented at CLEO 2006, this paper reports the first demonstration of intracavity sum-frequency mixing between a 914 nm and a 1064 nm Nd:YVO4 laser to generate 67 mW of CW output at 492 nm — a wavelength sitting between the standard 488 nm argon line and the 495 nm absorption band of many fluorescent probes. The intracavity pumping scheme described here avoids the need for an external pump laser, reducing system complexity while enabling efficient nonlinear frequency conversion in a compact monolithic architecture.
- [Etude de la dynamique d’un laser DPSS à émission continue dans l’UV](https://www.oxxius.com/technical-publications/life-science/etude-de-la-dynamique-dun-laser-dpss-a-emission-continue-dans-luv/): Etude de la dynamique d'un laser DPSS à émission continue dans l'UV - Archive ouverte HAL Recherche Accéder directement au contenu Pied de page Logo Logo Documentation FR Français (FR) Anglais (EN) Se connecter HAL science ouverte Recherche Loading… Recherche avancée Information de documents Titres Titres Sous-titre Titre de l'ouvrage Titre du volume (Série) Champ de recherche par défaut (multicritères) + texte intégral des PDF Résumé Texte intégral indexé des documents PDF Mots-clés Type de document Sous-type de document Tous les identifiants du document Identifiant HAL du dépôt Langue du document (texte) Pays (Texte) Ville À paraître (true ou false) Ajouter Auteur Auteur (multicritères) Auteur (multicritères) Auteur : Nom complet Auteur : Nom de famille Auteur : Prénom Auteur : Complément de nom, deuxième prénom Auteur : Organisme payeur Auteur : IdHal (chaîne de caractères) …
- [Stable CW low noise operation of a diode-pumped monolithic laser at 355 nm beyond 30 mW](https://www.oxxius.com/technical-publications/life-science/355nm-monolithic-cw-uv-laser-stability/): This 2007 SPIE paper presents the first long-term stability characterization of a 355 nm monolithic CW UV laser based on a quasi-monolithic DPSS architecture — a design that eliminates alignment sensitivity while maintaining the efficiency and compactness required for instrument integration. By systematically optimizing the thermal conditions of each cavity element and monitoring UV power, noise, and spectral behavior, the authors establish the thermal operating window for reliable 30 mW+ CW output at 355 nm.
- [Power control of a low noise CW Diode-Pumped Solid-State UV laser](https://www.oxxius.com/technical-publications/life-science/cw-dpss-uv-laser-power-control/): Presented at CLEO Europe 2007, this paper addresses a critical operational requirement for CW DPSS UV lasers at 355 nm: stable, precise power control without introducing additional noise. In intracavity frequency-tripled architectures, output power cannot simply be adjusted by varying pump current without disrupting the nonlinear conversion dynamics — a challenge that had limited the practical usability of early DPSS UV sources in sensitive analytical instruments.
- [Intracavity pumped Yb: SFAP crystal emitting at 985 nm and second harmonic generation [6871-56]](https://www.oxxius.com/technical-publications/life-science/yb-sfap-985nm-intracavity-pumping-shg/): Presented at SPIE Photonics West 2008 (proceedings reference 6871-56), this paper reports Yb:SFAP 985 nm intracavity pumping in a co-lasing Nd:YVO₄ cavity, combined with second harmonic generation to produce compact blue-green output at 492.5 nm. This SPIE conference paper is the companion contribution to the Optics Letters 2008 journal paper on the same architecture, providing additional experimental characterization of the Yb:S-FAP crystal performance under intracavity pumping conditions.
- [Intracavity pumped Yb: SFAP crystal emitting at 985 nm and second harmonic generation](https://www.oxxius.com/technical-publications/life-science/intracavity-pumped-yb-sfap-crystal-emitting-at-985-nm-and-second-harmonic-generation/): We present what is, to the best of our knowledge, the first experiment of intracavity pumping at 914 nm of an Yb:SFAP crystal emitting at 985 nm on the three-level laser transition. This configuration enabled us to indirectly diode-pump this ytterbium doped crystal, and to obtain 1.4 W output power at 985 nm for 20 W of incident pump power at 808 nm. Intracavity second harmonic generation has also been demonstrated in a KNbO3 crystal with a total of 120 mW linearly polarized output power at 492.5 nm on two output beams.
- [Diode-pumped Nd:YVO4/Yb:SFAP laser emitting at 985 and 492.5nm](https://www.oxxius.com/technical-publications/life-science/technical-publications-life-science-492nm-yb-sfap-intracavity-laser/): Published in Optics Letters in 2008, this paper reports the first demonstration of intracavity pumping of a Yb:S-FAP crystal by a Nd:YVO4 laser operating at 914 nm. The scheme exploits the three-level transition of Yb:S-FAP at 985 nm — normally difficult to achieve efficiently due to reabsorption losses — by using the intense intracavity field of the Nd:YVO4 pump laser to overcome threshold. With 1.4 W of output at 985 nm and 120 mW at 492.5 nm via intracavity second-harmonic generation, this work extended Oxxius's portfolio of compact visible and near-IR laser architectures beyond conventional Nd-doped systems.
- [1064 nm laser intracavity pumped at 912 nm and sum-frequency mixing for an emission at 491 nm](https://www.oxxius.com/technical-publications/life-science/491nm-blue-laser-via-sum-frequency-mixing/): This 2008 Optics Letters paper demonstrates a 491 nm blue laser source based on sum-frequency mixing of 912 nm and 1064 nm beams inside a BiBO crystal — delivering 155 mW of CW output from a single 808 nm pump diode emitting 20 W. The intracavity pumping scheme, in which a Nd:GdVO₄ laser at 912 nm drives a Nd:YVO₄ laser at 1064 nm within the same cavity, enables efficient nonlinear frequency conversion without the complexity of a separate pump laser.
- [Intracavity pumping of Yb: S-FAP and second harmonic generation for laser emission at 492.5 nm](https://www.oxxius.com/technical-publications/life-science/492nm-yb-sfap-second-harmonic-generation/): Presented at the 3rd EPS-QEOD Europhoton Conference in 2008, this paper explores 492.5 nm laser emission via Yb:SFAP second harmonic generation through intracavity pumping — an approach that complements the sum-frequency mixing architectures developed in parallel Oxxius publications at the same wavelength. Where the 2006 CLEO paper demonstrated 492 nm via sum-frequency mixing of 912 nm and 1064 nm beams in a BiBO crystal, this Europhoton contribution investigates the use of Yb:S-FAP as an alternative gain medium, exploiting its three-level transition at 985 nm and the subsequent frequency doubling to reach the blue-green range.
- [Lasers solides à base de transitions 3 niveaux du néodyme et de l’ytterbium, émission dans le bleu](https://www.oxxius.com/technical-publications/life-science/three-level-nd-yb-blue-solid-state-laser/): Solid-state lasers based on three-level transitions of neodymium and ytterbium, blue emission
- [Short and long term frequency stability of linear monolithic intra-cavity frequency-doubled solid-state laser](https://www.oxxius.com/technical-publications/measurement-metrology/monolithic-dpss-laser-frequency-stability/): Published at SPIE Photonics West 2010, this paper demonstrates monolithic DPSS laser frequency stability in linear cavity architectures that rivals — and in some cases exceeds — that of conventional Non-Planar Ring Oscillators (NPROs). By characterizing both short-term (minute-scale) frequency drifts and long-term stability across the SLIM product line (532 nm, 550 nm, 561 nm, and 660 nm), Oxxius established that linear monolithic cavities, despite their apparent simplicity, deliver spectral stability fully compatible with the most demanding metrology applications.
- [Half-Watt single frequency yellow 561 nm and yellow-green 553 nm DPSS lasers with record 19% optical conversion efficiency](https://www.oxxius.com/technical-publications/life-science/561nm-single-frequency-dpss-laser/): Since the first introduction of DPSS lasers at 561 nm in 2004, the power level required by some biotechnical applications has always increased. Oxxius has contributed to fulfill the demand thanks to the introduction of the SLIM-561 100mW in 2008 and of the SLIM-561 200mW and 300mW in 2009. More recently, new dyes or nano-dots have required shorter wavelengths (such as 553 nm) and new applications such as Laser Doppler Velocimetry requiring both high power and single frequency operation have appeared. In this presentation, we demonstrate how to further increase the power. 553nm and 561 nm emission are obtained by frequency doubling the 1106 nm and 1123 nm lines of Nd:YAG. The latter transitions are significantly weaker than the 1064 nm line. As a consequence, any loss in the cavity significantly increases the laser threshold. Because of the perfect alignment of the crystal interfaces and the …
- [Line competition in an intracavity diode-pumped Yb: KYW laser operating at 981 nm](https://www.oxxius.com/technical-publications/life-science/yb-kyw-981nm-intracavity-laser-line-competition/): Published in the Journal of the Optical Society of America B in 2011, this paper presents a detailed analysis of line competition in a Yb:KYW 981 nm intracavity laser — a phenomenon that directly limits achievable output power when multiple emission lines compete for the available gain. The Yb:KYW system, intracavity-pumped at 981 nm by a co-lasing transition, is particularly sensitive to this effect because its gain spectrum supports oscillation at 981 nm, 1000 nm, and 1025 nm simultaneously under standard operating conditions.
- [Low noise Raman lasers for yellow-orange spectrum coverage](https://www.oxxius.com/technical-publications/life-science/low-noise-raman-lasers-for-yellow-orange-spectrum-coverage/): Diode lasers have been demonstrated to operate over a great part of the visible spectrum: InGaN diodes cover the violet-blue- green part (<530 nm) and InGaAlP diodes cover the red part (>635 nm). Some fluorophorus in biotechnology applications are excited by intermediate wavelengths, from 540 to 630 nm. Optically pumped InGaAs lasers were demonstrated from 460 nm up to 580 nm. Standard frequency doubled diode pumped solid state (DPSS) lasers lack of suitable transition to cover the 565-650nm region. It is possible to modify the semiconductor composition to extend the frequency range or to frequency mix DPSS laser wavelengths, but it comes either with a significant R&D effort or with a complexity in the design. Raman scattering can red-shift the strong transitions of Nd or Yb lasers so that many wavelengths lying in the 1080-1300 nm range can be achieved. Recently several CW diode pumped …
- [Demonstration of miniaturized 20mW CW 280 nm and 266 nm solid-state UV laser sources](https://www.oxxius.com/technical-publications/life-science/280nm-266nm-miniaturized-cw-uv-laser/): Published at SPIE Photonics West 2015, this paper presents a miniaturized CW UV laser approach generating deep UV output at both 280 nm and 266 nm from compact monolithic DPSS cavities.. By frequency-doubling the output of 561 nm and 532 nm monolithic sources in separate 16 mm external cavities, the architecture achieves more than 20 mW of deep UV power with high stability, low noise, and complete insensitivity to mechanical vibrations — a critical requirement for portable and OEM-integrated instruments.
- [Deep ultraviolet lasers for flow cytometry](https://www.oxxius.com/technical-publications/life-science/deep-ultraviolet-lasers-for-flow-cytometry/): Modern flow cytometers require multiple laser wavelengths to excite the wide variety of fluorescent probes now available for high‐dimensional analysis. Ultraviolet (UV) lasers (typically solid state 355 nm) have become a critical excitation source for the Brilliant Ultraviolet (BUV) series of polymer fluorochromes. The BUV dyes have pushed the number of fluorescent probes available for simultaneous analysis to nearly 30, allowing an unprecedented level of precision for immune cell analysis. However, immunologists are already seeking analyze more than 30 simultaneous parameters, requiring both new fluorochromes and corresponding laser wavelengths. A group of polymer dyes requiring deep ultraviolet (UV) excitation (~280–300 nm) is currently under development, allowing the expansion of high‐dimensional cytometry beyond the current 30 color limit. In this study, we evaluated a newly available laser …
- [Lasers microchips pour l’instrumentation optique: du laboratoire au grand public](https://www.oxxius.com/technical-publications/life-science/diode-pumped-microchip-lasers-for-optical-instrumentation/): Published in La Revue de l'électricité et de l'électronique in 2020, this article presents Oxxius's vision for compact diode-pumped microchip lasers as the next generation of laser sources for optical instrumentation — positioned as the natural complement to laser diodes in applications where coherence, spectral purity, and beam quality matter as much as cost and compactness.
- [Watt-level diode-pumped thulium lasers around 2.3 µm](https://www.oxxius.com/technical-publications/life-science/watt-level-diode-pumped-thulium-lasers-around-2-3-um/): We report on efficient diode-pumped mid-infrared lasers based on , , and crystals. These lasers operate in the continuous-wave (CW) regime and deliver watt-level output power at the wavelengths of 2.2–2.3 µm (the transition). In particular, a 1.8 at. % laser pumped at 789 nm generates a maximum CW output power of 1.32 W at 2272–2277 nm with a slope efficiency of 33.1% (with respect to the absorbed pump power), a linear laser polarization (), and a fundamental transverse output mode (the measured , ). In the quasi-CW regime, the output peak power is scaled up to 2.69 W. The pump quantum efficiency and the fractional heat loading are estimated and discussed.
- [Watt-level visible laser in double-clad Pr3+-doped fluoride fiber pumped by a GaN diode](https://www.oxxius.com/technical-publications/life-science/watt-level-pr-zblan-red-fiber-laser-at-635nm/): Published in Optics Letters in 2020, this paper demonstrates a watt-level Pr:ZBLAN red fiber laser at 634.5 nm delivering 1.07 W of output power with 20.7% slope efficiency — pumped by a multimode 443 nm GaN diode. The double-clad ZBLAN fiber architecture, with a 5.5 µm single-mode core and a D-shaped inner cladding optimized for efficient pump coupling, enables high-brightness red emission that would otherwise require a dye laser or a complex DPSS system.
- [Narrow linewidth near-UV InGaN laser diode based on external cavity fiber Bragg grating](https://www.oxxius.com/technical-publications/measurement-metrology/narrow-linewidth-near-uv-ingan-laser-400nm/): Published in Optics Letters in 2021, this paper demonstrates a narrow linewidth near-UV InGaN laser diode at 400 nm achieving 16 kHz intrinsic linewidth and sub-MHz integrated linewidth through self-injection locking via a fiber Bragg grating. The narrowband FBG — fabricated specifically for the near-UV range — selects a single longitudinal mode from the otherwise multimode InGaN edge-emitting diode, yielding 44 dB side-mode suppression ratio and mW-level output power in a compact, low-cost assembly requiring no anti-reflection coating on the diode facet.
- [Assessment of a sub-MHz linewidth fiber Bragg grating external-cavity InGaN laser diode](https://www.oxxius.com/technical-publications/measurement-metrology/sub-mhz-ingan-fiber-bragg-grating-laser/): This 2021 SPIE paper reports a sub-MHz linewidth InGaN fiber Bragg grating laser delivering single-frequency emission around 400 nm with a side-mode suppression ratio approaching 50 dB — achieved without anti-reflection coating on the diode facet. The fiber Bragg grating, with a bandwidth close to 30 pm, selects a single longitudinal mode from the otherwise multimode InGaN edge-emitting diode, yielding a few mW of spectrally pure output from a compact, robust assembly.
- [1.064 µm CW stable single frequency emission and low noise reduction based on a monolithic cavity](https://www.oxxius.com/technical-publications/measurement-metrology/1064nm-single-frequency-monolithic-laser/): The 1064 nm single-frequency monolithic laser remains one of the most requested wavelengths in Oxxius's product portfolio, reflecting the breadth of precision applications that depend on narrow-linewidth, low-noise infrared emission.
- [Diode laser monofréquence par contre réaction d’un réseau de Bragg fibré dans le proche UV](https://www.oxxius.com/technical-publications/measurement-metrology/near-uv-single-frequency-fiber-bragg-grating-laser/): Single-frequency near-UV diode laser using fiber Bragg grating feedback
- [Spectroscopy of Ho3+-doped fluoride glasses for green double-clad fiber lasers](https://www.oxxius.com/technical-publications/life-science/ho-zblan-green-fiber-laser-549nm/): Oxxius green fiber laser research today
- [Diode-Pumped Deep-Red (717 nm) Double-Clad Praseodymium Fiber Laser](https://www.oxxius.com/technical-publications/life-science/717nm-pr-zblan-double-clad-fiber-laser/): Presented at the Advanced Solid State Lasers (ASSL) conference in 2022, this paper reports a watt-class deep-red fiber laser at 716.7 nm based on a Pr³⁺-doped ZBLAN double-clad fiber pumped by a 442 nm GaN diode — a pump wavelength within the range covered by Oxxius's own high-brightness blue laser diode modules. The 9.0% slope efficiency demonstrated here represents a significant step in making deep-red ZBLAN fiber lasers practical for instrument integration.
- [Deep-red double-clad fiber laser at 717 nm](https://www.oxxius.com/technical-publications/life-science/deep-red-double-clad-fiber-laser-at-717-nm/): We report on a double-clad fiber laser operating on the ^3P_0 → ^3F_4 Pr^3+ transition (in the deep-red spectral range) pumped by a GaN diode laser at ∼442 nm. It employs a 0.8-mol% PrF_3-doped ZBLAN double-clad fiber with a 7.5-µm core, a double D-shaped inner cladding, and a length of 3.0 m. The laser delivers a maximum output power of 0.71 W at 716.7 nm with a slope efficiency of 9.0% (versus the launched pump power) and a laser threshold of 0.90 W. The laser emission is partially polarized. The laser performance is simulated providing a guideline for watt-level deep-red fiber laser sources.
- [Pr: YLF Monolithic Diode-Pumped Solid-State Lasers](https://www.oxxius.com/technical-publications/life-science/pr-ylf-monolithic-diode-pumped-solid-state-lasers/): Neodymium based monolithic lasers are known to be efficient, in particular when they include intracavity frequency doubling (ref 1). They can provide emission with highly stable frequency (ref 2). Finally, since optical degradation is more likely to occur at crystal interfaces, reliability is expected to be improved by monolithic designs. The advent of high power blue diode lasers has allowed to pump other rare earths, such as Praseodymium, emitting directly in the visible range and potentially emitting in the UV range with appropriate intracavity frequency doubling stage. In order to optimize the performances of these new lasers, it is interesting to develop monolithic designs of the lasers.
- [Efficient yellow Dy: ZBLAN fiber laser with high-brightness diode-pumping at 450 nm](https://www.oxxius.com/technical-publications/life-science/dy-zblan-yellow-fiber-laser-at-575nm/): Published in EPJ Web of Conferences in 2024, this paper reports a Dy:ZBLAN yellow fiber laser at 575 nm achieving 109 mW of CW output with a record-high overall optical efficiency of 13.9% — pumped by two 450 nm GaN blue laser diodes in a single-clad geometry. The 19.6% slope efficiency and low threshold of 218 mW represent state-of-the-art performance for dysprosium-doped fluoride fiber lasers, enabled by the high brightness of the GaN pump diodes used.
- [Recent progress in visible fluoride fiber lasers](https://www.oxxius.com/technical-publications/life-science/recent-progress-in-visible-fluoride-fiber-lasers/): We overview recent advances in visible single- and double-clad fluoride fiber lasers pumped by blue GaN laser diodes. The spectroscopic properties of ZBLAN glasses doped with Pr3+, Ho3+ and Dy3+ ions are revised. Power scalable efficient continuous-wave visible fluoride fiber lasers emitting in the green, yellow, red and deep-red spectral ranges are presented. Pumped by a single-emitter 6-W 443-nm GaN laser diode, a continuous-wave red double-clad Pr:ZBLAN fiber laser delivered 1.51 W at 634.5 nm with a slope efficiency of 31.0%, a laser threshold of 0.63 W and a spatially single-mode output (M2 ~1.02). Employing a high-power fiber-coupled laser module, power scalability up to 4.61 W was achieved at the expense of a lower slope efficiency of 22.8% and an increased laser threshold of 1.74 W. Green Ho:ZBLAN (543 nm) and yellow Dy:ZBLAN (575 nm) fiber lasers with high-brightness core pumping at …
- [Orange Sm: LiYF4 lasers emitting at 605 nm](https://www.oxxius.com/technical-publications/life-science/orange-sm-liyf4-lasers-emitting-at-605-nm/): We report on polarized spectroscopy and orange laser operation under 2ω-OPSL and GaN-diode pumping of Sm:LiYF4 crystals. The Samarium laser delivers 12 mW at 605 nm with a threshold of 51 mW and a linear polarization.
- [High Power Diode Pumped Rare Earth Doped ZBLAN Visible Fiber Lasers: Technologies, Challenges and Opportunities](https://www.oxxius.com/technical-publications/life-science/high-power-zblan-visible-fiber-laser/): Presented at the Specialty Optical Fibers conference in 2024, this invited paper by Thierry Georges provides a state-of-the-art overview of high-power ZBLAN visible fiber lasers based on rare-earth-doped fluoride fibers — covering the technologies, current challenges, and opportunities for reaching watt-class visible output from compact, diode-pumped architectures.
- [10-Watt Red Fluoride Double-Clad Fiber Laser](https://www.oxxius.com/technical-publications/life-science/10-watt-red-fluoride-double-clad-fiber-laser/): A continuous-wave 442-nm blue diode-pumped double-clad Pr: ZBLAN fiber laser yields 9.1 W at 635 nm with 27.0% slope efficiency and a single-mode output and in the quasi-continuous-wave regime, it is scaled to 10.32 W.
- [Diode-pumped orange Sm:LiYF4 lasers emitting at 605 nm](https://www.oxxius.com/technical-publications/life-science/diode-pumped-orange-smliyf4-lasers-emitting-at-605-nm/): We report on a continuous-wave (CW) praseodymium fluoride fiber laser delivering 10-watt level output power in the red spectral range. It employs a double-clad 0.8 mol% PrF_3-doped ZBLAN fiber as a gain medium and a high-power fiber-coupled 442-nm GaN laser diode module as a pump source. The CW Pr-laser delivers 9.1 W at 635 nm with a slope efficiency of 27.0% (versus launched pump power), a laser threshold of 1.32 W, and a single-mode output. In the quasi-continuous-wave regime, its output is further scaled to 10.32 W. The spectrum broadening in this laser is explained by four-wave mixing and is well described by the square root law. This result represents a new milestone in developing visible fluoride fiber lasers. The temperature-dependent spectroscopy of Pr^3+ ions in the ZBLAN glass is studied, and the limits for further power scaling of red fluoride fiber lasers are discussed.
- [10-watt diode-pumped red Pr: ZBLAN double-clad fiber laser](https://www.oxxius.com/technical-publications/life-science/10-watt-diode-pumped-red-pr-zblan-double-clad-fiber-laser/): We report on a continuous-wave (CW) praseodymium fluoride fiber laser delivering 10-watt level output power in the red spectral range. It employs a double-clad 0.8 mol% PrF3-doped ZBLAN fiber as a gain medium and a high-power fiber-coupled 442-nm GaN laser diode module as a pump source. The CW Pr-laser delivers 9.1 W at 635 nm with a slope efficiency of 27.0% (versus launched pump power), a laser threshold of 1.32 W, and a single-mode output. In the quasi-continuous-wave regime, its output is further scaled to 10.32 W. The spectrum broadening in this laser is explained by four-wave mixing and is well described by the square root law. This result represents a new milestone in developing visible fluoride fiber lasers. The temperature-dependent spectroscopy of Pr3+ ions in the ZBLAN glass is studied, and the limits for further power scaling of red fluoride fiber lasers are discussed.
- [Dy3+-doped phosphate glass fibers for yellow lasers](https://www.oxxius.com/technical-publications/life-science/dy3-doped-phosphate-glass-fibers-yellow-lasers/): We report on the fabrication and characterization of Dy3+-doped phosphate glass fibers for applications in yellow lasers. The fibers (core/cladding diameters: 11/125μm) were fabricated in the system P2O5–Al2O3–Ba2O–K2O with their core doped with 0.12 at.% Dy3+. For bulk glass, the absorption cross-section σabs is 0.11×10-20 cm2 at 452.4nm (absorption bandwidth: 8.4nm), in the range well addressed by blue GaN laser diodes. The transition probabilities for Dy3+ ions are calculated using the Judd-Ofelt theory. The stimulated-emission cross-section in the yellow σSE is 0.36×10-20 cm2 at 574.1nm, and the luminescence lifetime for the 4F9/2 manifold is 818μs, indicating a luminescence quantum efficiency close to unity. μ-Raman and μ-luminescence mapping was performed over the fiber end-facet indicating a homogeneous core composition and a uniform distribution of Dy3+ ions.