Laser Diodes & Sources
690nm Multimode Fiber Coupled Diode Laser
The NLML Series Narrowline Multimode Fiber-Coupled Diode Laser is designed for high-stability performance, delivering high-power laser output with a narrow spectral linewidth through a multimode fiber. It incorporates a volume Bragg grating (VBG) phase element within the laser cavity to achieve precise wavelength locking, excellent wavelength stability with minimal temperature dependence, a linewidth below 0.07 nm, and a high side-mode suppression ratio (SMSR). An integrated power monitor and thermoelectric (TEC) cooler ensure reliable and stable output in both power and wavelength. This makes the NLML series ideal for demanding applications requiring narrow linewidth, precise wavelength control, and stable high-power output — such as Raman spectroscopy and advanced sensing systems.
Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
Part number: NLML-651221313
Wavelength: 690nm · Output Power: 500mW · Linewidth: <0.1nm · TEC Cooling: Yes · PD: None · Fiber Type: 105/125 · Fiber Cover: 0.9mm Tube · Fiber Length: 1.0 m · Connector: FC/APC
System integration
Integration and compatibility
Use these checks to connect 690nm Multimode Fiber Coupled Diode Laser to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optical interface and fiber
- Fiber Type: 105/125 · Fiber Cover: 0.9mm Tube
- Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
- Wavelength and loss budget
- Wavelength: 690nm
- Check the Laser Diodes & Sources passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Technical FAQ
Integration questions for 690nm Multimode Fiber Coupled Diode Laser
Which fiber and connector does the 690nm Multimode Fiber Coupled Diode Laser use?
Fiber Type: 105/125 · Fiber Cover: 0.9mm Tube. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
How should the 690nm Multimode Fiber Coupled Diode Laser be included in an optical power budget?
Wavelength: 690nm. Check the Laser Diodes & Sources passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Nearby series comparison
Compare 690nm Multimode Fiber Coupled Diode Laser with the closest available models in the Laser Diodes & Sources family.
| Selection parameter | 690nm Multimode Fiber Coupled Diode Laser (current) | 685nm Fiber Coupled FP Laser Source - 15mW | 700nm Fiber Coupled FP Laser Source - 20mW |
|---|---|---|---|
| Wavelength range | 690nm | 685nm | 700nm |
| Fiber type | 105/125 | SM450, SM600, PM460, PM630 | SM450, SM600, PM460, PM630 |
| Connector / control | FC/APC, SMA | Non, FC/APC, FC/PC, Special | Non, FC/APC, FC/PC, Special |
