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1. 发明授权

US07394983B2 Method and apparatus for detecting optical switch fault by monitoring optical output transitions 失效
标题翻译：通过监测光输出转换来检测光开关故障的方法和装置
公开(公告)号：US07394983B2
公开(公告)日：2008-07-01
申请号：US10685795
申请日：2003-10-14
申请人： Wang-joo Lee , Kwang-joon Kim , Sung-hoon Kwak
发明人： Wang-joo Lee , Kwang-joon Kim , Sung-hoon Kwak
IPC分类号： H04J14/00
CPC分类号： G02B6/359 , G02B6/3512 , G02B6/3546 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0083
摘要： Provided are a method and an apparatus for detecting the fault of an optical switch. The apparatus includes an optical monitoring signal generator, a coupler, a splitter, a plurality of optical detecting and output power transition sensing units, and a fault determiner. The optical monitoring signal generator generates optical monitoring signals having different wavelengths from optical signals including data to be transmitted. The coupler optically couples the optical monitoring signals to the optical signals including data to be transmitted and inputs the coupled optical signals to an optical switch. The splitter splits the optical monitoring signals from optical signals output from the optical switch. The plurality of optical detecting and output power transition sensing units detect output power transitions of the split optical monitoring signals. The fault determiner receives information on setting the optical switch from an external source, compares the information with the detected output power transitions of the split optical monitoring signals, and determines whether the optical switch malfunctions depending on whether the information coincides with the detected output power transitions of the split optical monitoring signals.
摘要翻译：提供了一种用于检测光开关故障的方法和装置。该装置包括光学监视信号发生器，耦合器，分离器，多个光学检测和输出功率转换感测单元以及故障确定器。光监视信号发生器产生具有不同波长的光监视信号，光信号包括待传输的数据。耦合器将光学监视信号光耦合到包括要发送的数据的光信号，并将耦合的光信号输入到光开关。分路器从光学开关输出的光信号分离光学监控信号。多个光学检测和输出功率转换感测单元检测分离光学监视信号的输出功率转换。故障确定器接收关于从外部源设置光开关的信息，将信息与检测到的分离光监视信号的输出功率转换进行比较，并根据信号是否与检测到的输出功率转换一致，确定光开关是否发生故障的分割光学监控信号。

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