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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 2 — Jan. 15, 2011
  • pp: 97–99

Detrimental effect of self-phase modulation on the performance of Brillouin distributed fiber sensors

Stella M. Foaleng, Félix Rodríguez-Barrios, Sonia Martin-Lopez, Miguel González-Herráez, and Luc Thévenaz  »View Author Affiliations


Optics Letters, Vol. 36, Issue 2, pp. 97-99 (2011)
http://dx.doi.org/10.1364/OL.36.000097


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Abstract

We show that the spectral broadening of the pump pulse through self-phase modulation in a time-domain distributed Brillouin sensor has a considerably detrimental effect in the measurement, especially in the case of long distances and high-resolution pulses. Using 30 ns pump pulses with peak power of 276 mW , self-phase modulation leads to a doubling of the effective gain linewidth after some 20 km , which is equivalent to a contrast loss of 2 dB in the measurement. The impact is higher for shorter pulses (higher resolution). The theoretical modeling is fully confirmed by experimental results.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(190.3270) Nonlinear optics : Kerr effect
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 20, 2010
Revised Manuscript: December 1, 2010
Manuscript Accepted: December 2, 2010
Published: January 6, 2011

Citation
Stella M. Foaleng, Félix Rodríguez-Barrios, Sonia Martin-Lopez, Miguel González-Herráez, and Luc Thévenaz, "Detrimental effect of self-phase modulation on the performance of Brillouin distributed fiber sensors," Opt. Lett. 36, 97-99 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-2-97

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