发明名称 |
Optical amplifying repeater |
摘要 |
An optical amplifying repeater is provided which enables even after the main input optical signal is disconnected, the continued returning of a response signal in response to a command signal from an end station. This optical amplifying repeater comprises an optical amplifier, an automatic level control loop including therein a drive control unit, a supervisory unit which returns a response signal RS responding to a command signal CM from an end office, and a detection/control unit which controls the drive control unit so as to increase the amplitude of the response signal RS when a loss of the main optical signal S from an optical transmission line is detected.
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申请公布号 |
US5784192(A) |
申请公布日期 |
1998.07.21 |
申请号 |
US19960582706 |
申请日期 |
1996.01.04 |
申请人 |
FUJITSU LIMITED |
发明人 |
SUGIYAMA, AKIRA;HARASAWA, SHINICHIROU |
分类号 |
H01S3/13;H01S3/131;H04B3/46;H04B10/02;H04B10/08;H04B10/17;(IPC1-7):H04B10/08;H01S3/00 |
主分类号 |
H01S3/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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