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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 8 — Apr. 15, 2012
  • pp: 1066–1072

Self-Heterodyne Detection for SNR Improvement and Distributed Phase-Shift Measurements in BOTDA

Ander Zornoza, Mikel Sagues, and Alayn Loayssa

Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1066-1072 (2012)


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Abstract

In this paper 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 demodulation. By employing this technique we increase the sensitivity of the sensor and demonstrate experimentally a 10.75-dB enhancement in the SNR compared to conventional direct-detection systems. This detection scheme also enables distributed measurements of the Brillouin phase-shift in an optical fiber, which can lead to enhanced BOTDA schemes.

© 2011 IEEE

Citation
Ander Zornoza, Mikel Sagues, and Alayn Loayssa, "Self-Heterodyne Detection for SNR Improvement and Distributed Phase-Shift Measurements in BOTDA," J. Lightwave Technol. 30, 1066-1072 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-8-1066

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