Ultra long single span distributed sensing distance over 200km based on the phase-sensitive OTDR with bidirectional high-order Raman amplification
2021 19th International Conference on Optical Communications and Networks (ICOCN)(2021)
摘要
An ultra-long phase-sensitive optical time domain reflectometry(Φ -OTDR) that can achieve sensing distance 205.46km single fiber with spatial resolution of 15m is presented to solve the problem of long-distance fiber optic cable monitoring, which use dual-coherent optic source and bidirectional high-order Raman amplification. To the best of our knowledge, this is the record sensing distance using ...
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关键词
Integrated optics,Optical fiber sensors,Stimulated emission,Optical recording,Optical mixing,Optical fiber cables,Optical fiber networks
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