The Raman fiber amplifier is mainly used for long-distance unrepeated transmission between two communication sites. It is different from the amplification of EDFA. The gain medium of EDFA is erbium-doped fiber, which can be amplified only when the optical signal enters EDFA. The gain medium of the Raman fiber amplifier is an ordinary single-mode fiber, which sends an optical signal through reverse pumping. When the reverse light meets the signal light, it is amplified, that is, the signal light is at a distance of 50Km or more from the end The gain distribution area is formed, and the signal light is distributed and amplified. The device can maintain high standard CNR and EMR values after long-span transmission, providing an ideal solution for long-distance and long-span optical fiber transmission plan.

Through the reasonable selection of the pump laser wavelength, the C-band and L-band amplification can be realized simultaneously under the condition of extremely low noise figure and good gain flatness. This is currently the only device that can simultaneously amplify in the range of 1528~1610nm.

The pump laser of the world's top brand is adopted, and the optimized optical path design and manufacturing process ensure the best optical performance. control mode, so that the output power has high stability and reliability, and also ensures excellent optical path indicators.

The system uses a highly stable and high-precision MPU (microprocessor), optimized structural thermal design and good ventilation and heat dissipation design, ensuring long life and high reliability of the equipment. Based on the powerful network management function of TCP/IP protocol, network monitoring and computer room management can be carried out on the status of multiple node equipment through the RJ45 network management interface, and it supports multiple redundant power supply configurations, which improves the practicability and reliability of the equipment.

1. Adopt the pump laser of the world's top brand.

2. The Raman switch gain can reach 16dBm.

3. When the CNR value is greatly increased, CTB and CSO can be kept unchanged.

4. Perfect APC, AGC and ATC optical path design to ensure low noise, high power and high reliability operation in the entire working band.

5. Built-in dual power supply backup, automatic switching.

6. The working parameters of the whole machine are controlled by the microprocessor, and the LCD status display on the front panel has multiple functions such as laser status monitoring, parameter display, fault alarm, and network management; once the working parameters of the laser deviate from the allowable range set by the software , the system will prompt an alarm.

7. Provide standard RJ45 interface, support SNMP and WEB remote network management