Control system and method for an optical amplifier

专利名称：Control system and method for an optical

amplifier

发明人：Tian, Cechan,Kinoshita, Susumu,Rodriguez,

Joseph R.

申请号：EP03006178.2申请日：20030319公开号：EP1349299A1公开日：20031001

专利附图：

摘要：A method and system for controlling the gain of the amplification of an opticalsignal is provided that includes both electrical feedforward and feedback. In a

feedforward portion of an optical amplifier, the method includes receiving an opticalsignal and measuring an input power. Based on the measured input power and a desiredgain, a feedforward pump power is determined. The pump power is adjusted based onthe determined pump power. In a feedback portion of an optical amplifier, an outputpower is measured and gain is determined based on the output power and the measuredinput power. The measured gain is compared to a desired gain and the pump power isadjusted based on that comparison.

申请人：FUJITSU LIMITED

地址：1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi, Kanagawa 211-8588 JP

国籍：JP

代理机构：HOFFMANN - EITLE

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