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Proceedings Paper

Distributed birefringence measurement of a polarization maintaining fiber with a 20cm resolution over a 500m range based on Brillouin dynamic grating
Author(s): Yongkang Dong; Hongying Zhang; Zhiwei Lu; Liang Chen; Xiaoyi Bao
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Paper Abstract

We demonstrate a distributed birefringence measurement of a polarization-maintaining fiber with a 20 cm resolution over a 500 m fiber based on Brillouin dynamic grating with the scheme including a CW pump1, a 20 ns square pump2 pulse, and a 2 ns square probe pulse. The measurement results show ~ 3% fluctuation of the birefringence over the entire 500 m fiber. We also observed the birefringence change caused by the uneven stress as winding the fiber around a spool with a spatial period of 49 cm and the residual stress during the fiber drawing and coating processes.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211B (17 October 2012); doi: 10.1117/12.974968
Show Author Affiliations
Yongkang Dong, Harbin Institute of Technology (China)
Univ. of Ottawa (Canada)
Hongying Zhang, Univ. of Ottawa (Canada)
Harbin Univ. of Science and Technology (China)
Zhiwei Lu, Harbin Institute of Technology (China)
Liang Chen, Univ. of Ottawa (Canada)
Xiaoyi Bao, Univ. of Ottawa (Canada)

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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