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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 19 — Jul. 1, 2013
  • pp: 4576–4581

Effect of intensity variation of laser in resonator integrated optic gyro

Ming Lei, Lishuang Feng, Yinzhou Zhi, and Huilan Liu  »View Author Affiliations


Applied Optics, Vol. 52, Issue 19, pp. 4576-4581 (2013)
http://dx.doi.org/10.1364/AO.52.004576


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Abstract

The performance of the resonator integrated optic gyro (RIOG) is inevitably influenced by the intensity variation of the laser. In this work, the effect of intensity variation of the laser is mathematically formulized, analyzed, and experimentally validated, to our knowledge for the first time. First, the demodulated curves with different light intensities input of the integrated optical resonator (IOR) are simulated; the relationship between the slope of the demodulated curve near the resonant point and the light intensity input of the IOR is obtained. Second, the amplitudes of the output square waveforms with different zero biases are demonstrated, and it can be concluded that the effect of intensity variation has a high correlation with the nonzero bias between the clockwise and counterclockwise resonant frequency. Third, the experimental setup is constructed and the related measurements are performed, the test results are in good agreement with the analytical and numerical simulation, and in order to reach the limited ultimate sensitivity of the RIOG, it is necessary to restrict the nonreciprocal zero bias within 8.1deg/s under an open-loop output scheme. Furthermore, to eliminate the noise induced by intensity variation of the laser and realize a high performance RIOG, a closed-loop operation is required.

© 2013 Optical Society of America

OCIS Codes
(060.2800) Fiber optics and optical communications : Gyroscopes
(130.6010) Integrated optics : Sensors
(230.3120) Optical devices : Integrated optics devices
(070.5753) Fourier optics and signal processing : Resonators

ToC Category:
Optoelectronics

History
Original Manuscript: April 5, 2013
Revised Manuscript: May 27, 2013
Manuscript Accepted: May 27, 2013
Published: June 26, 2013

Citation
Ming Lei, Lishuang Feng, Yinzhou Zhi, and Huilan Liu, "Effect of intensity variation of laser in resonator integrated optic gyro," Appl. Opt. 52, 4576-4581 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-19-4576


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