Optical amplifier and optical communication system

专利名称：Optical amplifier and optical communication

system employing the same

发明人：Onaka, Hiroshi,Miyata, Hideyuki,Otsuka,

Kazue

申请号：EP04006085.7申请日：19961127公开号：EP1427119A2公开日：20040609

专利附图：

摘要：An optical amplifier having an optical amplifying medium, a pump light sourceoutputting pump light, a first optical coupler for supplying the pump light to the optical

amplifying medium, a probe light source for outputting probe light having a wavelengthincluded in an amplification band, a second optical coupl.er for supplying the probe lightto the optical amplifying medium, detectors for detecting the powers of input signal lightand the probe light, respectively, and control unit for controlling the power of the probelight according to outputs from the detectors. This structure makes it possible toprovide an optical amplifier which can reduce the wavelength dependence of gain.

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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