Laser Diodes & Sources
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
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
Application context
Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.
690nm Multimode Fiber Coupled Diode Laser: Laboratory optical integration depends on preserving the optical budget through the complete path. The 690nm wavelength specification sets source and detector compatibility. The fiber/interface entry (105/125) must match the connected components.
690nm Multimode Fiber Coupled Diode Laser: Fiber-optic instrumentation depends on preserving the optical budget through the complete path. The 690nm wavelength specification sets source and detector compatibility. The fiber/interface entry (105/125) must match the connected components.
System integration
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.
Technical FAQ
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: 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.
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Compare 690nm Multimode Fiber Coupled Diode Laser with the closest available models in the Laser Diodes & Sources family. Confirm option-dependent values on the final configuration before ordering.
| 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 |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | 105/125 | SM450, SM600, PM460, PM630 | SM450, SM600, PM460, PM630 |
| Connector / control | FC/APC, SMA | Constant Current, Constant Power | Constant Current, Constant Power |
