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Proceedings Paper

Generalized model for beam-path variation in ring resonator and its applications in backscattering coupling effect
Author(s): Meixiong Chen; Jie Yuan; Xingwu Long; Zhenglong Kang; Yingying Li
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Paper Abstract

A generalized model for beam-path variation analyzed with vector method in square ring resonators is established. The model can be applied to analyze beam-path variation in various ring resonators induced by all the possible perturbation sources. The generalized model is useful for the cavity design, cavity improvement, alignment of planar ring resonators and research on backscattering coupling effect. Backscattering coupling effect in square ring resonator has been chosen as examples to show its application. Backscattering coupling coefficient r is obtained as a function of mirror's axial displacements. Some novel results of backscattering coupling effect have been acquired. The results indicate that r can not be reduced to zero because of the initial machining errors of surfaces of plane mirrors. However, r can be reduced to zero almost when stabilizing frequency of laser gyro by take the suitable values of axial displacements of plane mirrors. These results are important for high precision laser gyro.

Paper Details

Date Published: 6 February 2012
PDF: 11 pages
Proc. SPIE 8236, Laser Resonators, Microresonators, and Beam Control XIV, 823624 (6 February 2012); doi: 10.1117/12.905886
Show Author Affiliations
Meixiong Chen, National Univ. of Defense Technology (China)
Jie Yuan, National Univ. of Defense Technology (China)
Xingwu Long, National Univ. of Defense Technology (China)
Zhenglong Kang, National Univ. of Defense Technology (China)
Yingying Li, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 8236:
Laser Resonators, Microresonators, and Beam Control XIV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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