LDI-G2-5 Laser Diode Illuminator
LDI-G2-5
The LDI-G2-5 laser diode illuminator builds on the G2 platform with expanded power and spectral reach. Alongside the core visible lines, it extends into the near-infrared with a 730 nm channel, ideal for deep-tissue imaging and multiplexing imaging techniques. Combining brighter illumination with enhanced stability, the LDI-G2-5 delivers confidence in results across both traditional and cutting-edge applications. As with the 4-line model, optional 488 nm and 577 nm lasers can be included for GFP and mCherry imaging. Formerly part of the 89 North product line, the LDI-G2-5 is now manufactured and supported by Oxxius.
Note that we can also work with you to provide solutions for your unique needs.
Key features
- 5 laser lines from visible to near-infrared (up to 730 nm)
- Up to 1000 mW output power per line
- Feedback-controlled optical stability
- Optional 488 nm & 577 nm lasers
- No user alignment required
- TTL & Analog control
Compare with the LDI-5.
References and product variations
Part number
Combined wavelengths (nm)
Options
Ask for a quote
Part number LDI-G2-5
Part number LDI-G2-5-577
Part number LDI-G2-5-488
Part number LDI-G2-5-488-577
Performance by Wavelength
Wavelength
Optical Power Min (1)
CW Stability (typ.) (2)
Max Rise Time (typ.) (3)
Max On/Off Frequency (4)
405
Optical Power Min (1) 450 mW
CW Stability (typ.) (2) <0.2 %
Max Rise Time (typ.) (3) <5 µs
Max On/Off Frequency (4) >1000 Hz
470 or 488
Optical Power Min (1) 1000 mW (5)
CW Stability (typ.) (2) <0.2 %
Max Rise Time (typ.) (3) <5 µs
Max On/Off Frequency (4) >1000 Hz
555 or 577
Optical Power Min (1) 700 or 500 mW (6)
CW Stability (typ.) (2) <0.2 %
Max Rise Time (typ.) (3) <2 ms
Max On/Off Frequency (4) 100 Hz
640
Optical Power Min (1) 1000 mW
CW Stability (typ.) (2) <0.2 %
Max Rise Time (typ.) (3) <5 µs
Max On/Off Frequency (4) >1000 Hz
730
Optical Power Min (1) 750 mW
CW Stability (typ.) (2) <0.2 %
Max Rise Time (typ.) (3) <5 µs
Max On/Off Frequency (4) >1000 Hz
(1) Defined in accordance with the QUAREP-LiMi WG 1 standard, “Illumination Power, Stability, and Linearity Measurements for Confocal and Widefield Microscopes V.2”, Section 8, with power output measured at the fiber output.
(2) Measured at 100% intensity, 23 °C ±2 °C.
(3) Defined in accordance with the QUAREP-LiMi WG 1 standard, “Illumination Power, Stability, and Linearity Measurements for Confocal and Widefield Microscopes V.2”, Section 8, with power output measured at the fiber output.
(4) Measured at 100 % intensity, 50 % duty cycle
(5) 470 or 488 - Optical Power Min: 488 nm optical power min preliminary estimate. Actual output power pending product release.
(6) 555 or 577 - Optical Power Min: 577 nm optical power min preliminary estimate. Actual output power pending product release.
Optical characteristics
Output Power
Up to 1000 mW per line
+ higher power density via 400 µm single
fiber
Optical Stability
Active feedback control
<0.2 % CW stability (10× improvement)
Laser Lines
5 lines: DAPI | FITC/GFP |
TRITC/mCherry | Cy5 | 730 nm NIR
+ optional 488 nm & 577 nm
NIR Channel (730 nm)
✔ Deep-tissue imaging
Multiplexing applications
Beam Quality
Improved beam quality
Cleaner, more stable output profile
Fiber Output
400 µm single → higher power density
User Alignment
Not required
LDI-G2-5 Laser Diode Illuminator General specifications
Output Options
Optical fiber
(400 µm single, 0.39 NA)
Control Options
TTL (> 2.3 V) | Analog (0–5 V)
USB–DSP (virtual COM port)
Intensity Control
0.1% steps (10× finer)
Full linear range
Safety
Interlocked housing | Key interlock
IEC 60825 compliant
QUAREP-LiMi WG1
✔ Compliant
Dimensions
318 × 234 × 146 mm
(12.5" × 9.2" × 5.75")
Weight
~4 kg (~9 lbs)
Operating Temp.
15 to 30 °C
Storage Temp.
-18 to 50 °C
Humidity
<80 % non-condensing
Voltage
90–220 V AC, 50–60 Hz
Warranty
2 years
Applications / Techniques
Spinning Disk Microscopy
Widefield Microscopy
Light Sheet Microscopy
Structured Illumination Microscopy (SIM)
Super Resolution Imaging
TIRF
PALM / STORM / DNA-PAINT
FRAP
Photoactivation / Photoconversion
Photoablation
Optogenetics
Near Infrared (NIR) Imaging — 730 nm
Neuroscience / Physiology
Cellular Biology
Single Molecule FISH (smFISH)
Spatial Transcriptomics / Proteomics
Digital Pathology
Need help?
Frequently Asked Questions
Laser diode illuminators for spinning disk confocal, TIRF, STORM, PALM, or optogenetics require stable, linear, high-power multiline illumination delivered through a single fiber output. The following FAQ covers the key questions when evaluating the MixxWave LDI range (405 to 730 nm, up to 1000 mW) — from the differences between Gen 1 and Gen 2 to quantitative performance, maintenance, and laser safety. Our team is available to help identify the right configuration for your microscopy setup.
