Spontaneous Brillouin scattering measurement in optical fiber utilizing all-fiber Mach-Zehnder interferometer

Yujun He; Yongqian Li; Zhi Yang; Chengqun Yin; Toshihiko T. Yoshino

doi:10.1117/12.481971

9 September 2002 Spontaneous Brillouin scattering measurement in optical fiber utilizing all-fiber Mach-Zehnder interferometer

Yujun He, Yongqian Li, Zhi Yang, Chengqun Yin, Toshihiko T. Yoshino

Author Affiliations +

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481971
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Yujun He, Yongqian Li, Zhi Yang, Chengqun Yin, and Toshihiko T. Yoshino "Spontaneous Brillouin scattering measurement in optical fiber utilizing all-fiber Mach-Zehnder interferometer", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481971

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