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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 24 — Dec. 15, 2009
  • pp: 3884–3886

Solid-state ring laser gyro behaving like its helium–neon counterpart at low rotation rates

Sylvain Schwartz, François Gutty, Gilles Feugnet, Éric Loil, and Jean-Paul Pocholle  »View Author Affiliations


Optics Letters, Vol. 34, Issue 24, pp. 3884-3886 (2009)
http://dx.doi.org/10.1364/OL.34.003884


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Abstract

Nonlinear couplings induced by crystal diffusion and spatial inhomogeneities of the gain have been suppressed over a broad range of angular velocities in a solid-state ring laser gyro by vibrating the gain crystal at 168 kHz and 0.4 μ m along the laser cavity axis. This device behaves in the same way as a typical helium–neon ring laser gyro, with a zone of frequency lock-in (or dead band) resulting from the backscattering of light on the cavity mirrors. Furthermore, it is shown that the level of angular random-walk noise in the presence of mechanical dithering depends only on the quality of the cavity mirrors, as is the case with typical helium–neon ring laser gyros.

© 2009 Optical Society of America

OCIS Codes
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect
(140.3370) Lasers and laser optics : Laser gyroscopes
(140.3560) Lasers and laser optics : Lasers, ring
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 4, 2009
Revised Manuscript: October 7, 2009
Manuscript Accepted: October 20, 2009
Published: December 11, 2009

Citation
Sylvain Schwartz, François Gutty, Gilles Feugnet, Éric Loil, and Jean-Paul Pocholle, "Solid-state ring laser gyro behaving like its helium-neon counterpart at low rotation rates," Opt. Lett. 34, 3884-3886 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-24-3884

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