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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1536–1538

Removing left–right asymmetry in a Sagnac interferometer applied to cancel its reflectance dependence on birefringence

Ilya Golub and Hourieh Exir  »View Author Affiliations

Optics Letters, Vol. 38, Issue 9, pp. 1536-1538 (2013)

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We present a left–right symmetry restoring method, which removes the detrimental birefringence in the single-mode fiber Sagnac interferometer, achieved with the aid of a half waveplate oriented at a specific angle. We show theoretically and demonstrate experimentally that adding a π-shift between clockwise and counterclockwise propagating, horizontally (in fiber loop plane) polarized field components, the Sagnac loop mirror’s reflection becomes independent on birefringence of an element placed in the loop.

© 2013 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2310) Fiber optics and optical communications : Fiber optics
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect
(260.1440) Physical optics : Birefringence
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

Original Manuscript: March 8, 2013
Manuscript Accepted: April 1, 2013
Published: April 29, 2013

Ilya Golub and Hourieh Exir, "Removing left–right asymmetry in a Sagnac interferometer applied to cancel its reflectance dependence on birefringence," Opt. Lett. 38, 1536-1538 (2013)

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