1625nm high power FP laser diode with QCW operation and single mode output, optimized for OTDR, methane gas sensing, and fiber optic testing applications. The 1625nm Single Mode High Power FP Laser Diode in QCW TO Package is specifically designed for applications requiring high peak power and extended wavelength operation. Compared to standard 1550nm devices, the 1625nm wavelength offers enhanced performance in specialized applications such as OTDR testing and gas sensing, particularly for methane (CH₄) detection.
Need a laser or photonic component for your project?
Share your target wavelength, package requirements, application and estimated quantity. Our team can help evaluate suitable product options.
For faster evaluation, please include wavelength, optical power or detector requirements, package and expected order volume.
- Description
- Additional information
Description
1625nm Single Mode High Power FP Laser Diode QCW TO Package Overview
The 1625nm Single Mode High Power FP Laser Diode in QCW TO Package is specifically designed for applications requiring high peak power and extended wavelength operation. Compared to standard 1550nm devices, the 1625nm wavelength offers enhanced performance in specialized applications such as OTDR testing and gas sensing, particularly for methane (CH₄) detection.
This FP laser diode operates in quasi-continuous wave (QCW) mode, delivering high pulsed output power up to 300 mW. With stable single-mode emission and optimized slope efficiency, it ensures reliable and consistent optical performance under demanding conditions.
The device features excellent wavelength stability and a predictable temperature coefficient, making it suitable for precision measurement systems. Its compact TO package allows for easy integration into optical modules and industrial systems requiring robust and efficient laser sources.
Key Features
- High pulsed output power up to 300 mW
- 1625nm wavelength optimized for OTDR and gas sensing
- Single mode operation for stable beam quality
- QCW operation for high peak performance
- Stable wavelength with low temperature drift
- Compact TO package for system integration
Applications
- Optical Time Domain Reflectometer (OTDR)
- Methane (CH₄) gas sensing systems
- Fiber optic testing and diagnostics
- Laser ranging and measurement systems
- Industrial sensing and monitoring
Technical Parameters
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Threshold Current | Ith | CW, 25°C | – | 27 | 28 | mA |
| Slope Efficiency | SE | I = Ith + 20 mA, QCW | 0.32 | 0.34 | – | W/A |
| Output Power (Pulsed) | Po | I = 1200 mA, QCW, 25°C | 280 | 300 | – | mW |
| Output Power (85°C) | Po | I = 1200 mA, QCW, 85°C | – | 150 | – | mW |
| Forward Voltage | Vf | I = 1200 mA, QCW | – | 2.78 | 2.99 | V |
| Series Resistance | Rs | I = 500 mA, 25°C | – | 1.94 | 2.33 | Ω |
| Center Wavelength | λc | I = 500 mA, QCW | – | 1626 | – | nm |
| Wavelength Temp. Coefficient | Δλ/ΔT | 25–85°C | – | 0.58 | – | nm/°C |
QCW condition: Pulse width = 10 µs, Duty cycle = 1%
Product Size
Performance Curve
FP Laser Integration
For FP devices, review optical power at the stated drive conditions, CW or QCW operation, beam characteristics, package dimensions and thermal management before integration.
Frequently Asked Questions
What type of photonic device is 1625nm Single Mode High Power FP Laser Diode QCW TO Package?
1625nm Single Mode High Power FP Laser Diode QCW TO Package belongs to the FP product family and is used for laser emission applications.
What wavelength or spectral range does 1625nm Single Mode High Power FP Laser Diode QCW TO Package use?
The specified wavelength or spectral range is 1625 nm. Refer to the technical specifications above for operating conditions and applicable tolerances.
What package is available for 1625nm Single Mode High Power FP Laser Diode QCW TO Package?
The product is listed in TO Package format. Check the package drawing and pin or fiber details above before integration.
What applications are associated with 1625nm Single Mode High Power FP Laser Diode QCW TO Package?
The product is listed for OTDR & Fiber Monitoring, LiDAR & Ranging. Suitability should be evaluated against the required optical and electrical specifications.
Related Technical Resources
Additional information
| Device Technology | FP |
|---|---|
| Wavelength Band | 1600–1799 nm |
| Application | LiDAR & Ranging, OTDR & Fiber Monitoring |
| Package Type | TO Package |
| Device Function | Laser Emission |
| Wavelength / Spectral Range | 1625 nm |
| Operating Mode | QCW |
