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28 February 2017 Structural optimization of the path length control mirror for ring laser gyro
Yanghua Ma, Bingxin Quan, Zonghu Han, Jiliang Wang
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Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 1025617 (2017) https://doi.org/10.1117/12.2256501
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China
Abstract
The path length control mirror (PLCM) is essential for high precision ring laser gyro (RLG). In this paper the influence of the structural parameters of the PLCM on its length compensating efficiency (LCE) and the anti-transversedeformation capability(ATDC) is numerically investigated, with the aid of the finite element software ANSYS. The result shows that the inner and outer diameters as well as the thickness of the deformation slot of the PLCM have significant influences on both its LCE and ATDC, while the position of the deformation slot of the PLCM has little impact on its LCE and mainly affect its ATDC. According to the simulation, two types of PLCMs with the same parameters all but the position of deformation slot are fabricated and experimentally demonstrated, with the result showing great agreement with the simulation. That is to say, for a given overall dimension constraint, the dynamic stability of the RLG resonator can be dramatically enhanced by a proper design of the PLCM, without almost any negative impact on its LCE. This will be of great value for the optimization of the PLCM for RLG, especially for miniature RLG.
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Yanghua Ma, Bingxin Quan, Zonghu Han, and Jiliang Wang "Structural optimization of the path length control mirror for ring laser gyro", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 1025617 (28 February 2017); https://doi.org/10.1117/12.2256501
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KEYWORDS
Gyroscopes
Mirrors
Resonators
Laser resonators
Laser stabilization
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