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Optics Letters

Optics Letters


  • Vol. 27, Iss. 11 — Jun. 1, 2002
  • pp: 897–899

Dispersion effects in a highly birefringent fiber laser sensor with fiber Bragg grating reflectors

Karim Haroud, Klaus Bohnert, Andreas Frank, and Hubert Brändle  »View Author Affiliations

Optics Letters, Vol. 27, Issue 11, pp. 897-899 (2002)

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The effects of dispersion in the highly birefringent fiber Bragg grating reflectors of a polarimetric elliptical-core fiber laser sensor are experimentally and theoretically investigated. The laser sensor is designed to measure fluid pressure. It is experimentally and theoretically shown that the wavelength-dependent phase shifts in the gratings can be employed to remove the near degeneracy of the polarization mode beat frequencies of a given order, which substantially improves the resolution of the sensor. A resolution of a few parts in 106 of the free spectral range of the laser is demonstrated.

© 2002 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(140.3510) Lasers and laser optics : Lasers, fiber
(260.1440) Physical optics : Birefringence
(260.2030) Physical optics : Dispersion

Karim Haroud, Klaus Bohnert, Andreas Frank, and Hubert Brändle, "Dispersion effects in a highly birefringent fiber laser sensor with fiber Bragg grating reflectors," Opt. Lett. 27, 897-899 (2002)

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