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Proceedings Paper

Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode
Author(s): Kwang-Yong Song; Sora Yang
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Paper Abstract

A novel kind of Brillouin optical time-domain sensor based on direct modulation of a laser diode (LD) is demonstrated which is free from the use of any microwave device. The Brillouin pump and the probe waves are alternately generated by the LD modulation, and an optical time-domain analysis adopted for distributed measurement. Maps of Brillouin frequency shift are obtained with a spatial resolution of 2 m and an accuracy of ±2 MHz in a 2 km optical fiber.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775321 (17 May 2011); doi: 10.1117/12.885802
Show Author Affiliations
Kwang-Yong Song, Chung-Ang Univ. (Korea, Republic of)
Sora Yang, Chung-Ang Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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