Differential chirped-pulse pair for sub-meter spatial resolution Brillouin distributed fiber sensing

A distributed fiber sensor based on a differential chirped-pulse pair Brillouin optical time domain analysis (DCPBOTDA) is proposed for sub-meter spatial resolution sensing. The technique is based on the subtraction of two measurements made with the same pump pulse widths, but differing in the final short section of the pulse by a positive or negative frequency chirp, respectively. Experimental results are compared with a precise theoretical modeling, validating the sub-meter sensing capabilities of the technique.


Published in:
Proc. SPIE, 9634, 96341D
Presented at:
24th International Conference on Optical Fibre Sensors, Cutitiba, Brazil, September 28-October 2, 2015
Year:
2015
Publisher:
Bellingham, SPIE
ISBN:
978-1-62841-839-2
Keywords:
Laboratories:




 Record created 2015-10-19, last modified 2018-03-17

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