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1.发明公开公开(公告)号：US20230275657A1
公开(公告)日：2023-08-31
申请号：US18020238
申请日：2021-06-17
发明人： Cuihong ZHANG , Jiantao ZHANG , Zhijun YE , Tao XIONG
IPC分类号： H04B10/071 , H04B10/2575
CPC分类号： H04B10/071 , H04B10/2575
摘要： Disclosed are an optical fiber time domain reflectometer (OTDR), a test system, test method, and a storage medium. The OTDR comprises: an input end for receiving an input service optical signal; a first filter connected with the input end and for filtering an interference signal with a wavelength equal to a test wavelength of the OTDR in the service optical signal; a wavelength division multiplexing WDM device having a reflection end, a transmission end and an output end; and an OTDR basic unit connected with the transmission end and used for emitting an OTDR signal equal to a test wavelength and receiving a return signal of the OTDR signal, wherein the output end of the WDM device is for outputting a filtered service optical signal received from the reflection end, outputting the OTDR signal received from the transmission end, and receiving the return signal returned from the optical fiber.
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