本DFRA (Distributed Fiber Raman Amplifier), 即分布式拉曼光纤放大器, C或L波段工作, 实现高增益低噪声放大, 做工精致, 性能优良. 拉曼放大器较之常规EDFA拥有更为优异的噪声指标, 用于补偿长距离光传输系统, 用分布式光纤传感等领域. 传统按键式的人机界面能让使用更简洁, 台式或模块产品都可提供串行通讯口, 便于控制以及集成.
DESCRIPTION
The DFRA (Distributed Fiber Raman Amplifier), adopts unique design to produce Distributed signal gain and flat output power while maintaining low noise figure, enabling test capabilities in system or component level manufacturing and characterization, as well as facilitating highly demanding R&D applications.
The turnkey bench-top unit incorporates an user-friendly front panel housing with a LCD monitor display, key switch, power control knob. An integrated RS232 interface enables easy control. The compact module is also available.
FEATURE
Wide Input Power and Wavelength Range
High Gain and Low Noise
User Friendly Interface
APPLICATION
Ultra Long Haul Optical Fiber Communication
Fiber Laser Physics, Sensing
Research and Development
SPECIFICATION
| Parameter | Unit | Min. | Typ. | Max. |
| Signal Wavelength Range | nm | 1528~1565 | – | 1570~1650 |
| Raman Gain | dB | 0 | – | 10 |
| Gain Flatness | dB | – | – | 2 |
| Pump Wavelength Range | nm | 1425~1457 | – | 1470~1550 |
| Pump Power | dBm | 25 | 27 | 30 |
| Degree of Polarization of Pump | % | 5 | – | 10 |
| Polarization Dependent Gain | dB | – | 0.2 | – |
| Polarization Mode Dispersion | ps | – | – | 0.5 |
| Input/Output Isolation | dB | 35 | – | – |
| Pump Control Mode | – | APC | ||
| Fiber Type | – | SM28-e, OD=0.9mm | ||
| Operating Temperature | ℃ | -5 ~ +50 | ||
| Power supply* | – | DC 5V, 6A (Module) AC 220V (Bench-top) | ||
| Dimensions (L×W×H)* | mm | 220×130×30 (Module) 260×280×120(Bench-top) |
ORDER INFORMATION
DFRA-1-2-3-4-5
| 1 | 2 | 3 | 4 | 5 |
| Package | Pump Power | Band | Fiber Type | Connector |
| M=Module | 25 = 25dBm | C = C Band | S=SMF | FA=FC/APC |
| B=Bench-top | 27 = 27dBm | L = L Band | X=N.A. | |
| 30 = 30dBm |
