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Resonator fiber optic gyro employing a semiconductor laser |
Applied Optics, Vol. 51, Issue 15, pp. 2856-2864 (2012)
http://dx.doi.org/10.1364/AO.51.002856
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Abstract
Resonator fiber optic gyro (RFOG) based on the Sagnac effect has the potential to achieve the inertial navigation system requirement with a short sensing coil. Semiconductor laser is one of the key elements for integration and miniaturization of the RFOG. In this paper, an RFOG employing a semiconductor laser is demonstrated. The model of the laser frequency noise induced error in the RFOG is described. To attenuate the laser frequency noise induced error, active frequency stabilization is applied. An online laser frequency noise observation is built, as a powerful optimum criterion for the loop parameters. Moreover, the laser frequency noise observation method is developed as a new measurement tool. With a fast digital proportional integrator based on a single field programmable gate array applied in the active stabilization loop, the laser frequency noise is reduced to 0.021 Hz (
© 2012 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2800) Fiber optics and optical communications : Gyroscopes
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: January 3, 2012
Revised Manuscript: February 21, 2012
Manuscript Accepted: February 23, 2012
Published: May 15, 2012
Citation
Zhonghe Jin, Xuhui Yu, and Huilian Ma, "Resonator fiber optic gyro employing a semiconductor laser," Appl. Opt. 51, 2856-2864 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-15-2856
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