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Proceedings Paper

Time division multiplexing optical time domain reflectometry by directly synthesizing heterodyne intermediate frequency
Author(s): Xuping Zhang; Yuejiang Song; Lidong Lu; Fan Zhu
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Paper 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.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84219R (7 November 2012); doi: 10.1117/12.974807
Show Author Affiliations
Xuping Zhang, Nanjing Univ. (China)
Yuejiang Song, Nanjing Univ. (China)
Lidong Lu, Nanjing Univ. (China)
Fan Zhu, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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