Dynamic BOTDA measurements using Brillouin phase-shift

Javier Urricelqui; Ander Zornoza; Mikel Sagues; Alayn Loayssa

doi:10.1117/12.975011

17 October 2012 Dynamic BOTDA measurements using Brillouin phase-shift

Javier Urricelqui, Ander Zornoza, Mikel Sagues, Alayn Loayssa

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842125 (2012) https://doi.org/10.1117/12.975011
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase-shift instead of the conventional Brillouin gain. This provides the advantage of measurements that are largely immune to variations in fiber attenuation or changes in pump pulse power. Furthermore, the optical detection deployed can lead to an enhanced precision or measurement time and to the broadening of the measurement range. Proof-of-concept experiments demonstrate 1.66 kHz measurement rate with 1-m resolution over a 160-m sensing fiber length.

Citation Download Citation

Javier Urricelqui, Ander Zornoza, Mikel Sagues, and Alayn Loayssa "Dynamic BOTDA measurements using Brillouin phase-shift", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842125 (17 October 2012); https://doi.org/10.1117/12.975011

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