Presentation Information
[WC3-4]Dual-Stage Modulation Correlation OTDR for High-Resolution Monitoring in Passive Optical Networks
Yaun Li2, ○Wu Liu1, Yiwen Yang1, Tianqian Zhang1, Zhiyi Zhong1, Han Li1, Xiang Li2, Ming Luo1 (1China Information Communication Technologies Group Corporation, 2China Univ. of Geosciences (Wuhan))
Keywords:
Fiber sensing application incl. environmental monitoring using optical network
Utilizing SOA and dual-stage modulation, we achieve correlation OTDR with 14.8dB dynamic range and <2 cm spatial resolution in typical PON scenarios. The approach achieves higher peak-noise-level compared to correlation schemes using continuous signal.