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METHOD, REPEATER AND SUBMARINE CABLE SYSTEM FOR MONITORING FIBER LINE STATUS
METHOD, REPEATER AND SUBMARINE CABLE SYSTEM FOR MONITORING FIBER LINE STATUS
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机译:监测光纤线路状态的方法,中继器和海底电缆系统
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摘要
The present invention relates to communications technologies, and discloses a method for monitoring the state of a fiber line, a repeater, and a submarine cable system. The repeater includes a first optical amplifier, a second optical amplifier, a first gating unit, a second gating unit, a first coupler, a second coupler, a third coupler, and a fourth coupler. The first coupler, the fourth coupler, and the first gating unit form an in-to-in loopback path between the input end of the first OA and the input end of the second OA; and the second coupler, the third coupler, and the second gating unit form an out-to-out loopback path between the output end of the first OA and the output end of the second OA. With the repeaters of such a structure being applied, the monitoring device may monitor both the state of the uplink fiber and the state of the downlink fiber of the submarine cable on a single end of the submarine cable system.
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