Optical Time Domain Reflectometer And Optical Subassembly Having Optical Time Domain Reflectometry Function
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United States of America Patent
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May 20, 2021
app pub date -
Jan 26, 2021
filing date -
Jul 27, 2018
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Abstract
Optical time domain reflectometers and optical subassemblies haying optical tine domain reflectometry functions are provided. In one aspect, an optical time domain reflectometer includes a base and a light splitting film disposed on the base, and the light splitting film includes a first side corresponding to a transmission region and a second, opposite side corresponding to a reflection region. The optical time domain reflectometer further includes a laser and a detector that are respectively located on the transmission region and the reflection region. The light splitting film is configured to: reflect or transmit laser light emitted by the laser out of the base, and reflect or transmit a part of the laser light reflected or scattered by an optical fiber to the detector.
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