Long-range coherent optical frequency domain reflectometry and its applications

Fumihiko Ito; Xinyu Fan; Yusuke Koshikiya

doi:10.1117/12.884820

17 May 2011 Long-range coherent optical frequency domain reflectometry and its applications

Fumihiko Ito, Xinyu Fan, Yusuke Koshikiya

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77533F (2011) https://doi.org/10.1117/12.884820
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

Recent progress on novel long-range coherent optical frequency domain reflectometry is described along with its applications to diagnosing problems with optical fiber cables. The measurement range of a conventional C-OFDR is limited to the coherence length of the laser used as a light source, since the phase noise of the laser degrades the sharpness of the beat spectrum. We have developed phase-noise-compensated optical frequency domain reflectometry (PNC-OFDR) to overcome this limit, by introducing a novel phase-noise compensation technique, and achieved a very high-resolution measurement over the fiber link length. We describe the principle of PNC-OFDR and recent related developments, and discuss its use in diagnosing issues with fiber networks.

Citation Download Citation

Fumihiko Ito, Xinyu Fan, and Yusuke Koshikiya "Long-range coherent optical frequency domain reflectometry and its applications", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533F (17 May 2011); https://doi.org/10.1117/12.884820

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