Compensation of optical source phase noise in long-range OFDR by using an optical fiber delay loop

Bin Wang; Xinyu Fan; Qingwen Liu; Zuyuan He

doi:10.1117/12.2195321

28 September 2015 Compensation of optical source phase noise in long-range OFDR by using an optical fiber delay loop

Bin Wang, Xinyu Fan, Qingwen Liu, Zuyuan He

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96342Y (2015) https://doi.org/10.1117/12.2195321
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

We demonstrate a novel method to compensate the optical source phase noise in long-range OFDR by using an optical fiber delay loop (OFDL). In this method, a 10 km OFDL is incorporated in the reference interferometer of the reflectometry. A frequency shifter is used to count the circulation rounds of the light traveling in OFDL. The preliminary “proof-of-concept” experiment shows a successful compensation effect and an 11 cm spatial resolution over 20 km measurement range is realized by this method.

Citation Download Citation

Bin Wang, Xinyu Fan, Qingwen Liu, and Zuyuan He "Compensation of optical source phase noise in long-range OFDR by using an optical fiber delay loop", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342Y (28 September 2015); https://doi.org/10.1117/12.2195321

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