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Method for suppressing the bias drift of interferometric all-fiber optic gyroscopes |
Optics Letters, Vol. 36, Issue 7, pp. 1191-1193 (2011)
http://dx.doi.org/10.1364/OL.36.001191
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Abstract
We propose a simple and, to our knowledge, novel method for suppressing the bias drift of interferometric all-fiber optic gyroscopes (I-FOGs) and for self-calibrating the bias of I-FOGs to zero. Using a square wave to reverse the polarity of the sinusoidal voltage on a piezoelectric (PZT) modulator periodically, and calculating the output signal of a demodulator circuit in-phase with the square wave by a digital signal processor (DSP), we successfully reduce the bias drift of I-FOGs. Experimental results show that, at room temperature, the proposed method dramatically reduces the bias instability of an I-FOG from
© 2011 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: December 20, 2010
Revised Manuscript: February 18, 2011
Manuscript Accepted: February 23, 2011
Published: March 28, 2011
Citation
Xinyue Wang, Changhong He, and Ziyu Wang, "Method for suppressing the bias drift of interferometric all-fiber optic gyroscopes," Opt. Lett. 36, 1191-1193 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1191
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