I.High power optical amplifier - features 1. The olah is a fiber amplifier and power supply integrated in a 1ru&2ru shelf. Multiple output ports can be chose. 2. The olah incorporates electrical control circuitry wit a digital signal Processor and includes photodiodes for monitoring the optical Input and output power through tap couplers. 3. Double cooling system can protect the pump laser to work in a long time. 4. Rj45 and rs 232 port, snmp management system. 5. Good stability, vfd displays the working conditions, good trouble alarm system.