2 June 2014 In-service communication channel sensing based on reflectometry for TWDM-PON systems
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915792 (2014) https://doi.org/10.1117/12.2058662
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
Many base stations are accommodated in TWDM-PON based mobile backhaul and fronthaul networks for future radio access, and failed connections in an optical network unit (ONU) wavelength channel severely degrade system performance. A cost effective in-service ONU wavelength channel monitor is essential to ensure proper system operation without failed connections. To address this issue we propose a reflectometry-based remote sensing method that provides wavelength channel information with the optical line terminal (OLT)-ONU distance. The method realizes real-time monitoring of ONU wavelength channels without signal quality degradation. Experimental results show it achieves wavelength channel distinction with high distance resolution.
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Daisuke Iida, Daisuke Iida, Shigeru Kuwano, Shigeru Kuwano, Jun Terada, Jun Terada, } "In-service communication channel sensing based on reflectometry for TWDM-PON systems", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915792 (2 June 2014); doi: 10.1117/12.2058662; https://doi.org/10.1117/12.2058662
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