In-service communication channel sensing based on reflectometry for TWDM-PON systems

Daisuke Iida; Shigeru Kuwano; Jun Terada

doi:10.1117/12.2058662

2 June 2014 In-service communication channel sensing based on reflectometry for TWDM-PON systems

Daisuke Iida, Shigeru Kuwano, Jun Terada

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.

Citation Download Citation

Daisuke Iida, Shigeru Kuwano, and 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); https://doi.org/10.1117/12.2058662

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