7 November 2012 Time division multiplexing optical time domain reflectometry by directly synthesizing heterodyne intermediate frequency
Author Affiliations +
Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84219R (2012) https://doi.org/10.1117/12.974807
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A time division multiplexing optical time domain reflectometry (TDM-OTDR) based on multi-frequency probe light and directly synthesizing heterodyne intermediate frequencies (IFs) is proposed and experimentally demonstrated. Five time division multiplexing probe frequencies are obtained by synchronous control of an arbitrary waveform generator and a phase modulator. Experimental results achieve 6.5dB dynamic range enhancement, compared with conventional coherent OTDR.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xuping Zhang, Yuejiang Song, Lidong Lu, Fan Zhu, "Time division multiplexing optical time domain reflectometry by directly synthesizing heterodyne intermediate frequency", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84219R (7 November 2012); doi: 10.1117/12.974807; https://doi.org/10.1117/12.974807
PROCEEDINGS
4 PAGES


SHARE
Back to Top