Chinese Journal of Lasers, Volume. 40, Issue 11, 1102003(2013)
Intensity Distribution Properties of Output Light in Total Reflection Prisms Laser Gyro with Cavity Stresses
The sources of cavity stress in total reflection prisms laser gyro are complex, and strong stress may seriously affect the gyro′s accuracy. Based on the prism material dielectric constant change under stress, the effect of stress-birefringence on the gyro output is analyzed systematically by using Jones matrix and the elastic-optic effect theory. The energy distributions of the reflected and transmitted light are obtained at Brewster angle, and the explanation of the reflected interference speckle is given. The reflected light intensity is simulated corresponding to uniform gradient, point concentration and complex stresses fields between the prism and cavity. The related experimental results agree with the simulation. An engineered equipment for prism and other correlates stress detection is designed.
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Liu Jianning, Jiang Junbiao, Lian Tianhong, Zhong Cong, He Xiaoli. Intensity Distribution Properties of Output Light in Total Reflection Prisms Laser Gyro with Cavity Stresses[J]. Chinese Journal of Lasers, 2013, 40(11): 1102003
Category: Laser physics
Received: May. 15, 2013
Accepted: --
Published Online: Oct. 20, 2013
The Author Email: Jianning Liu (liu.j.n._@163.com)