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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 21 — Nov. 1, 1984
  • pp: 3916–3924

Effect of Rayleigh backscattering in an optical passive ring-resonator gyro

K. Iwatsuki, K. Hotate, and M. Higashiguchi  »View Author Affiliations


Applied Optics, Vol. 23, Issue 21, pp. 3916-3924 (1984)
http://dx.doi.org/10.1364/AO.23.003916


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Abstract

Resonance characteristics of Rayleigh backscattering in an optical passive ring-resonator gyro (OPRG) are theoretically formulated taking the temporal coherence of the optical source into account. This resonance has two peaks with separation equal to the Sagnac phase shift when rotation is induced. This phenomenon degrades the gyro’s linearity in a configuration to obtain the frequency output. Rayleigh backscattering also can induce an enhanced noise at specific input rotation rates. The methods of solving these problems are discussed. The theoretical limit of rotation sensing, given by the detector shot noise, is also computed taking into account the optical source coherence. A spectrum width narrower than several tens of kHz is required to realize the OPRG for navigation use.

© 1984 Optical Society of America

History
Original Manuscript: November 26, 1984
Published: November 1, 1984

Citation
K. Iwatsuki, K. Hotate, and M. Higashiguchi, "Effect of Rayleigh backscattering in an optical passive ring-resonator gyro," Appl. Opt. 23, 3916-3924 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-21-3916


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References

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  16. Equations (25) and (26) are identical in this case. To apply these Eqs. to the more complicated case discussed in Sec. IV.B, such notations have been used.
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