2nd Order Distributed Fiber Raman Amplifier, based on the 1st Order Distributed Fiber Raman Amplifier, adds a pump laser in the range of 1340~1360nm to provide Raman gain for the 14xx nm laser of the 2nd Order Raman, which can effectively reduce system noise and is suitable for optical signal amplification in longer distance relay optical transmission systems. This 2nd order fiber Raman amplifier must be used in conjunction with a first-order fiber Raman amplifier.
| Optical Parameter | Unit | Typical Values | Remark |
| Pump Wavelength | nm | 1340~1360 | |
| Signal Wavelength | 1425~`1465 | customizable | |
| Raman gain | dB | 10/20 | |
| Gain Flatness | dB | <2 | |
| Pump Power | mW | 300/500/1000/1400 | customizable |
| Pump light polarization DOP | – | 5% (Type), 10%(Max) | |
| Noise | dB | 0 | |
| Polarization dependent gain PDG | dB | <0.2 | |
| Polarization Mode Dispersion PMD | ps | <0.5 | |
| Input/output Isolation | dB | >35 | |
| 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% | |
| ① | ② | ③ | ④ |
| FRA | Signal wavelength (nm) | Pump power (mW) | Package Type |
| 1450 | 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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