F-tone Networks 1625nm pulse laser modules for OTDR are equipped with a high power FP chip with low threshold current and high-efficiency output.Capable of working with a high current,the pulsed laser module can operate in dual mode,pulse and direct current.The multi-mode fiber is optional.This laser diode is generally used in the communication and testing systems that use OTDR and Raman light reflection principles.
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1625nm Pulse Laser Modules for OTDR
Description
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| Pulsed Forward Current | IFP | 700 | mA | ||
| Reverse Voltage | VR | 2 | V | ||
| Reverse Voltage (monitor PD) | VRM | 10 | V | ||
| Reverse Current (monitor PD) | IFPM | 2 | mA | ||
| Operating Temperature | TC | 0 | 60 | °C | |
| Storage Temperature | Tstg | -40 | 85 | °C | |
| Lead Soldering Temperature | Tsld | 260(10s) | °c | ||
| Relative Humidity (Noncoagulable) | RH | 85 | % |
Optical & Electrical Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes |
| Forward Voltage | VFP | 3.0 | V | IFP = 400 mA, PW = 10 μs, Duty = 1% | ||
| Threshold Current | Ith | 20 | 35 | mA | ||
| Optical Output Power From Fiber | Pf | 40 | mW | IFP =400 mA, PW = 10 μs, Duty = 1% | ||
| Center Wavelength | λc | 1620 | 1625 | 1630 | nm | IFP =400 mA, PW = 10 μs, Duty = 1% |
| Spectral Width | σ | 4 | nm | RMS (−3 dB) | ||
| Rise Time | tr | 0.5 | 2.0 | ns | 10-90% | |
| Fall Time | tf | 0.5 | 2.0 | ns | 90-10% | |
| Monitor Current | Im | 0.05 | 2 | mA | VRM =5 V |
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
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