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Proceedings Paper

Long-range coherent optical frequency domain reflectometry and its applications
Author(s): Fumihiko Ito; Xinyu Fan; Yusuke Koshikiya
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Paper 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.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533F (17 May 2011); doi: 10.1117/12.884820
Show Author Affiliations
Fumihiko Ito, NTT Access Network Service Systems Labs. (Japan)
Xinyu Fan, NTT Access Network Service Systems Labs. (Japan)
Yusuke Koshikiya, NTT Access Network Service Systems Labs. (Japan)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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