Laser Diodes & Sources
The FPLD series fiber-coupled laser diodes are designed with a GaAs quantum well structure. These diodes feature a built-in photodiode for precise monitoring and feedback control of the laser’s output power. Housed in standard TO packages, these diodes are pigtailed to a 1-meter long single-mode fiber terminated with an FC/APC connector. Each unit undergoes rigorous testing prior to shipment to ensure reliability. The laser cavity is highly sensitive to light reflection. We have an isolator to block reflections, consequently providing emission stability. Additionally, we offer a cost-effective, high-performance feedback laser diode controller/driver kit that maintains a constant and adjustable output power, along with an externally cooled co-axial laser mounting fixture to stabilize the output wavelength. It is available in a module or benchtop with an integrated isolator.
Configuration options
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: 785nm · Power: 40mW · Package: Coaxial · Fiber Type: Hi780 · Fiber Buffer: 0.9mm Tube · Fiber Length: 1.0 m · Connector: Non
Application context
Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.
785nm Fiber Coupled FP Laser - 40mW: Laboratory optical integration depends on preserving the optical budget through the complete path. The 785nm wavelength specification sets source and detector compatibility. The fiber/interface entry (Hi780, PM780) must match the connected components.
785nm Fiber Coupled FP Laser - 40mW: Fiber-optic instrumentation depends on preserving the optical budget through the complete path. The 785nm wavelength specification sets source and detector compatibility. The fiber/interface entry (Hi780, PM780) must match the connected components.
System integration
Use these checks to connect 785nm Fiber Coupled FP Laser - 40mW to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Fiber Type: Hi780, PM780 · Fiber Buffer: 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: 785nm. 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 785nm Fiber Coupled FP Laser - 40mW with the closest available models in the Laser Diodes & Sources family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | 785nm Fiber Coupled FP Laser - 40mW (current) | 785nm Fiber Coupled FP Laser - 30mW | 785nm Fiber Coupled FP Laser - 50mW |
|---|---|---|---|
| Wavelength range | 785nm | 785nm | 785nm |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | Hi780, PM780 | Hi780, PM780 | Hi780, PM780 |
| Connector / control | Non, FC/APC, FC/PC, Special | Non, FC/APC, FC/PC, Special | Non, FC/APC, FC/PC, Special |
