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Proceedings Paper

Depolarizer improvement for optical fiber vibration sensor
Author(s): Toshiki Kubo; Ataru Takahashi; Nancy Zhao; Ryozo Yamauchi
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Paper Abstract

An optical signal with a polarization dependence behaves as a noise signal in a vibration sensing optical fiber. To remove the noise signal, the optical fiber vibration sensor needs to have a depolarizer. Fusion splicing the polarization maintaining fiber with a 45 degree angle offset is a common method to produce the depolarizer. In this paper, we present a method to improve the depolarizer for the vibration sensor through the use of fusion splicing. We succeeded to reduce the noise with the improved depolarizer that uses a method to observe the fiber end surface of polarization maintaining fiber for analyzing the polarization plane.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AK (7 November 2012); doi: 10.1117/12.968575
Show Author Affiliations
Toshiki Kubo, Fujikura Ltd. (Japan)
Ataru Takahashi, Fujikura Ltd. (Japan)
Nancy Zhao, Fujikura China Co., Ltd. (China)
Ryozo Yamauchi, Fujikura Ltd. (Japan)

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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