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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 24 — Nov. 27, 2006
  • pp: 11804–11813

Distributed measurements of fiber birefringence and diametric load using optical low-coherence reflectometry and fiber gratings

Dragan Coric, Hans G. Limberger, and René P. Salathé  »View Author Affiliations

Optics Express, Vol. 14, Issue 24, pp. 11804-11813 (2006)

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Polarization sensitive optical low-coherence reflectometry (OLCR) is used for measuring the complex fiber Bragg gratings (FBG) reflection coefficient. We determine the beat length directly from oscillations in the OLCR amplitude with a resolution of 10-6 and a spatial resolution only limited by the minimum beat length or the coherence length of the light source. Using the OLCR amplitude and phase in combination with an inverse scattering algorithm the birefringence is retrieved with a resolution of 2×10-5 while the spatial resolution is 25 µm. The two developed techniques are applied for measuring position, magnitude and footprint of induced birefringence of an FBG under uniform and nonuniform diametric loading.

© 2006 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(230.1480) Optical devices : Bragg reflectors
(260.1440) Physical optics : Birefringence

ToC Category:
Optical Devices

Original Manuscript: September 7, 2006
Revised Manuscript: November 7, 2006
Manuscript Accepted: November 8, 2006
Published: November 27, 2006

Dragan Coric, Hans G. Limberger, and René P. Salathé, "Distributed measurements of fiber birefringence and diametric load using optical low-coherence reflectometry and fiber gratings," Opt. Express 14, 11804-11813 (2006)

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