Fiber Raman amplifier uses the Raman effect in quartz fiber to provide gain to optical signals, and has the advantages of flat gain spectrum and large bandwidth. The 1st Order Distributed Fiber Raman Amplifier uses a 14xxnm wavelength laser as the Raman pump to provide gain for C-band signal light, which can effectively compensate for the attenuation of optical signals during long-distance fiber transmission. Suitable for long-distance optical transmission systems and distributed fiber optic sensing systems.* Note 1
| Optical Parameter | Unit | Typical Values | Remark |
| Pump Wavelength | nm | 1425~1465 | |
| Signal Wavelength | 1528~1565 | customizable | |
| Raman gain | dB | 10/20 | *Note 2 |
| Gain Flatness | dB | <2 | *Note 2 |
| Pump Power | mW | 300/500/1000/1400 | customizable |
| Pump light polarization DOP | – | 5% (Type), 10%(Max) | |
| Noise | dB | 0 | |
| Fiber Type | – | SMF-28e | 1.0m length |
| Optical Connector | – | FC/APC | only for low power test |
| Working mode | – | Automatic pump power control (APPC) |
| Electrical and environmental parameters | Desktop | Module |
| Control Mode | Button | RS232 |
| Communication Interface | * Optional | DB9 Female |
| Power Supply | 100~240V AC, <45W | DC 12V3A |
| Dimensions | 260(W)×280(D)×120(H)mm | 125(W)×150(D)×31.5(H)mm |
| Operation Temperature Range | -5~+35°C | |
| Operation Humidity Range | 0~70% | |
*Note 1: This amplifier is only a Raman amplifier pump and needs to be combined with the optical fiber in the user’s system to generate Raman gain, not a discrete Raman amplifier; It is recommended to configure a distributed Raman amplifier when the fiber length in the transmission system exceeds 50km.
*Note 2: The gain of a distributed Raman amplifier refers to the comparison of signal power at the receiving end of the system when the Raman amplifier pump is turned on and off, also known as on off gain. On off gain is different from the usual amplifier gain and does not refer to the ratio of output power to input power. The actual performance of distributed Raman amplifiers (Raman gain coefficient, gain flatness) is closely related to comprehensive factors such as transmission fiber type, fiber length, signal wavelength, and power. The typical values here are only reference values.
| ① | ② | ③ | ④ |
| FRA | Signal wavelength (nm) | Pump power (mW) | Package Type |
| 1550 | 300/500/1000/1400 | M: Module
B: Desktop |
If you need to customize other specifications, please provide detailed description for your requirement.
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