Self-heterodyne synchronous detection for SNR improvement and distributed Brillouin phase shift measurements in BOTDA sensors

Ander Zornoza; David Olier; Alayn Loayssa

doi:10.1117/12.886040

17 May 2011 Self-heterodyne synchronous detection for SNR improvement and distributed Brillouin phase shift measurements in BOTDA sensors

Ander Zornoza, David Olier, Alayn Loayssa

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77532F (2011) https://doi.org/10.1117/12.886040
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

We present a Brillouin optical time domain analysis (BOTDA) sensor that takes advantage of the enhanced characteristics obtained employing self-heterodyne optical detection combined with synchronous RF demodulation to increase the sensibility of the sensor and minimize non-local effects. We also perform for the first time to our knowledge distributed measurements of the Brillouin phase shift in an optical fiber.

Citation Download Citation

Ander Zornoza, David Olier, and Alayn Loayssa "Self-heterodyne synchronous detection for SNR improvement and distributed Brillouin phase shift measurements in BOTDA sensors", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532F (17 May 2011); https://doi.org/10.1117/12.886040

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