SELF-AUTOMATIC GAIN CONTROL DISTRIBUTED RAMAN FIBER AMPLIFIER AND AUTOMATIC GAIN CONTROL METHOD

摘要

Disclosed is a self-automatic gain control distributed Raman fiber amplifier, in which a signal is transmitted to a self-AGC monitor and a PD via a pump/signal combiner through a transmission fiber and passes through an RFA control circuit, a self-AGC firmware, and an ASCII communication unit and an Raman pump laser module communicates with the RFA control circuit and transmits the signal to the pump/signal combiner.

主权项

1. An automatic gain control method for a self-automatic gain control distributed Raman fiber amplifier, comprising:
setting a Raman gain of a user; checking safety, including an input alarm and a reflection alarm; analyzing, by the pumping LD, a fiber type; determining the fiber type and an EDFA ASE; calculating reference RPD and BPD values; comparing the reference RPD and BPD values with self-AGC monitor reading values (BPD, RPD, and OPD) which are currently being operated to determine whether both values coincide with each other; controlling a B-pump, and determining whether the reference BPD value coincides with the self-AGC monitor value BPD which is currently being operated; and controlling an R-pump, and determining whether the reference RPD value coincides with the self-AGC monitor value RPD.