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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 4 — Feb. 15, 2011
  • pp: 520–522

Sagnac interferometer with adaptive nonlinear detection

U. Bortolozzo, S. Residori, J. L. Rubin, and J. P. Huignard  »View Author Affiliations

Optics Letters, Vol. 36, Issue 4, pp. 520-522 (2011)

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We present a Sagnac interferometer that uses a nonlinear adaptive medium for detection. The nonlinearity of the medium being characterized by a finite response time, the detection has a finite frequency bandwidth determining two operational regimes: at low variation rate of the rotation speed the interferometer operates in the slow-light regime, providing a direct measurement of the angular acceleration. For high variation rate of the rotation speed the amplitude of the alternating component of the Sagnac phase shift is instead detected, with the continuous and low-frequency components filtered out by the adaptive nonlinear process in the medium.

© 2011 Optical Society of America

OCIS Codes
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(160.3710) Materials : Liquid crystals
(190.2055) Nonlinear optics : Dynamic gratings
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: November 8, 2010
Revised Manuscript: December 24, 2010
Manuscript Accepted: January 10, 2011
Published: February 9, 2011

U. Bortolozzo, S. Residori, J. L. Rubin, and J. P. Huignard, "Sagnac interferometer with adaptive nonlinear detection," Opt. Lett. 36, 520-522 (2011)

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