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The DRA (Distributed Raman Amplifier) Raman Optical Amplifier Card launched by Guangzhou Sintai Communication Co., Ltd. utilizes the Raman scattering effect in the quartz fiber to provide gain to the optical signal. Adopting 14xxnm wavelength laser as Raman pumping, it provides gain to C-band signal light, which can effectively compensate for the attenuation of optical signal in fiber long-distance transmission to extend the power budget of optical link and significantly improve OSNR, suitable for long-distance optical transmission system.
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| Model | PRE-DRA | ||||
| Parameter | Minimum | Normal Value | Maximum | Unit | Remark |
| Working wavelength | 1528 | 1565 | nm | ||
| Input optical power | -36 | -10 | dBm | ||
| Effective gain | 12 | 14 | 15 | dB | @G.652 optical fiber > 40km, attenuation coefficient 0.20dB/km |
| Gain flatness | 2.2 | dB | @Gain=14 | ||
| Pump wavelength | 1423~1465 | nm | |||
| Total pump output power | 700 | mw | @Each pump can be set to 500mw, 2 pumps in total | ||
| Noise figure | 0 | dB | |||
| Input optical power threshold | -38 | dBm | Configurable | ||
| Number of slots occupied | Support all OTNS8600 series chassis, occupies 2 slots | ||||
| Model | BOOST-DRA | ||||
| Parameter | Minimum | Normal Value | Maximum | Unit | Remark |
| Working Wavelength | 1528 | 1565 | nm | ||
| Input optical power | 0 | 14 | dBm | ||
| Effective gain | 10 | dB | @G.652 optical fiber > 40km attenuation coefficient 0.20dB/km | ||
| @Input optical power = 14dBm | |||||
| Gain fatness | 2.2 | dB | @Gain=14 | ||
| Pump wavelength | 1423~1465 | nm | |||
| Total pump output power | 700 | mw | @Each pump can be set to 500mw | ||
| Total 2 pumps | |||||
| Noise figure | 0 | dB | |||
| Input optical power threshold | 0 | dBm | Configurable | ||
| Number of slots occupied | Support all OTNS8600 series chassis, occupies 2 slots | ||||
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