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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 22 — Nov. 15, 2006
  • pp: 3231–3233

Use of modal interference for probing birefringence induced in a bent optical fiber

Tien-Jung Chen and Yi-Hsin Lin  »View Author Affiliations

Optics Letters, Vol. 31, Issue 22, pp. 3231-3233 (2006)

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We report a novel method that utilizes two lowest-order modes, HE 11 and TE 01 , to probe birefringence induced in a bent circular-core optical fiber. The interference patterns of the two modes are examined by using a polarizer at the fiber output end. The contrast that is extracted from the interference pattern is periodically modulated as a function of phase retardation between the two modes, while the shift of the contrast function shows a strong dependence on the fiber birefringence as the polarizer rotates. Theoretical description followed by the test results demonstrates the feasibility of the method.

© 2006 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(230.3720) Optical devices : Liquid-crystal devices
(260.1440) Physical optics : Birefringence

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 5, 2006
Revised Manuscript: August 27, 2006
Manuscript Accepted: August 29, 2006
Published: October 26, 2006

Tien-Jung Chen and Yi-Hsin Lin, "Use of modal interference for probing birefringence induced in a bent optical fiber," Opt. Lett. 31, 3231-3233 (2006)

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