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Proceedings Paper

Spontaneous Brillouin scattering measurement in optical fiber utilizing all-fiber Mach-Zehnder interferometer
Author(s): Yujun He; Yongqian Li; Zhi Yang; Chengqun Yin; Toshihiko T. Yoshino
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Paper Abstract

The principle of all fiber Mach-Zehnder interferometer as an optical filter was investigated in this paper. All fiber Mach-Zehnder interferometers with single-pass and double-pass configuration were manufactured and used in the measurement of spontaneous Brillouin scattering. The separation of backscattered spontaneous Brillouin from Rayleigh with low losses was achieved effectively. With the Mach-Zehnder interferometer, a direct optical detection method was used in Brillouin OTDR, by which a new detection method for distributed sensing system based on spontaneous Brillouin scattering was proposed.

Paper Details

Date Published: 9 September 2002
PDF: 5 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481971
Show Author Affiliations
Yujun He, North China Electric Power Univ. (China)
Yongqian Li, Gunma Univ. (Japan)
Zhi Yang, North China Electric Power Univ. (China)
Chengqun Yin, North China Electric Power Univ. (China)
Toshihiko T. Yoshino, Gunma Univ. (Japan)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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