Paper
19 August 2011 The investigation on mirrors maladjustment for RLG
Xiao-qing He, Ai-hua Gao, Shang-bin Hu, Zhi-guo Lu
Author Affiliations +
Abstract
In order to meet the high demand of the entire technology processing, the error compensation method is usually used to correct them and is premised on a good understanding of error sources and the law of the errors. In this paper, based on the theories of Collins's Integral and Collins's EIKONAL Function and the MATLAB software, we simulated and calculated the spatial distribution of optical beam in the cavity of the ring laser gyro under the resonator's maladjustment caused by the technology processing. From the simulation results, we can get that to the small-gain lasers, the same amount of disorders in the different structures have different effects on the spatial distribution of the beam, and the structures using the spherical mirrors relatively have the small impact on the beam; under the same disorder in the same cavity shape, the signal light and the calibration light which are respectively detected from the mirror M1 and M4 are different; under the same structures, different mirrors with the same amount of disorder will cause the different beat frequency difference; because of the disorders, the spot centers of clockwise and counterclockwise waves happen shift and will seriously affect the normal operation of the laser gyro if the imbalance reaches a certain degree. This work has a guiding role in the mirror adjustment of the laser gyros' technology processing, and has a reference value to the survival rate of the laser gyros and the improvement of measurement accuracy.
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Xiao-qing He, Ai-hua Gao, Shang-bin Hu, and Zhi-guo Lu "The investigation on mirrors maladjustment for RLG", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81921B (19 August 2011); https://doi.org/10.1117/12.899748
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KEYWORDS
Mirrors

Gyroscopes

Resonators

Signal detection

Optical simulations

Laser processing

Laser applications

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