Laser Diodes & Sources
Narrow Line Fiber Coupled Lasers
The NDFB serial fiber coupled laser features narrow spectral linewidth, low noise, and cost-effectiveness. It is based on semiconductor on chip technologies. They have maximum output power of about 20mW and a built-in power monitor for precision power control as well as TEC cooling for wavelength stability. They are available at 1550nm. A heat sink is required to remove the heat preventing damage. We offer driving electronics to precisely control both the output power and temperature (wavelength)

Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
We confirm the exact part number for your configuration on enquiry.
Wavelength: 1550nm · Output Power: 10mW · Linewidth: 100kHz · Driver: No · PD: Yes · Fiber Type: SM28 · Fiber Buffer: 900µm Tube · Fiber Length: 1.0 m · Connector: None
Downloads
Datasheets & documents
System integration
Integration and compatibility
Use these checks to connect Narrow Line Fiber Coupled Lasers 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: SM28, PM1550 · Fiber Buffer: 900µm 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: 1550nm
- 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.
- Control interface
- Driver: No, Yes
- Match supply voltage, analog or digital command range, connector pinout and default optical state to the instrument interlock. Confirm the unpowered state explicitly — it decides what happens to the link on a power failure.
Technical FAQ
Integration questions for Narrow Line Fiber Coupled Lasers
Which fiber and connector does the Narrow Line Fiber Coupled Lasers use?
Fiber Type: SM28, PM1550 · Fiber Buffer: 900µm 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 Narrow Line Fiber Coupled Lasers be included in an optical power budget?
Wavelength: 1550nm. 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.
Does the Narrow Line Fiber Coupled Lasers require a controller?
Driver: No, Yes. Match supply voltage, analog or digital command range, connector pinout and default optical state to the instrument interlock. Confirm the unpowered state explicitly — it decides what happens to the link on a power failure.
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 Narrow Line Fiber Coupled Lasers with the closest available models in the Laser Diodes & Sources family.
| Selection parameter | Narrow Line Fiber Coupled Lasers (current) | Multimode Laser Diode Chips | Narrow Linewidth Semiconductor Lasers |
|---|---|---|---|
| Wavelength range | 1550nm | 770nm, 780nm, 785nm, 980nm | 1550nm |
| Fiber type | SM28, PM1550 | — | SM28, PM1550 |
| Connector / control | None, FC/APC, Special | — | None, FC/APC, Special |


