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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 23 — Nov. 8, 2010
  • pp: 24012–24018

Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode

Kwang Yong Song and Sora Yang  »View Author Affiliations


Optics Express, Vol. 18, Issue 23, pp. 24012-24018 (2010)
http://dx.doi.org/10.1364/OE.18.024012


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Abstract

We propose and experimentally demonstrate a novel kind of Brillouin optical time-domain sensor based on direct modulation of a laser diode (LD) 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.

© 2010 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4080) Fiber optics and optical communications : Modulation
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Sensors

History
Original Manuscript: October 11, 2010
Manuscript Accepted: October 25, 2010
Published: November 2, 2010

Citation
Kwang Yong Song and Sora Yang, "Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode," Opt. Express 18, 24012-24018 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-23-24012


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