腔镜失调对激光陀螺信号输出的影响

研究了不同腔镜结构不同失调情况对空间谐振式激光陀螺中光束空间位置的影响.利用Collins积分与Collins程函理论以及MATLAB软件工具，对腔镜失调前后激光陀螺中光束传输进行了仿真计算.结果表明，相同失调量的不同反射镜所产生的拍频频差是不同的，且分别从M1和M4镜探测到的拍信号频不相同；对于小增益激光器，使用球面镜的腔镜结构较平面镜的腔镜结构更易形成稳定光束空间位置分布；由所计算的空间坐标xn可以看出,双向行波光束的光斑中心发生了偏移，在一定的失调量下将会影响到激光陀螺的拍频输出.研究结果对激光陀螺的工程检测和腔镜调整有指导作用，有助于激光陀螺测量准确度的提高.

Abstract

The spatial locations of the beam in spatial resonator gyroscope under different maladjustments were mainly studied. According to theories of Collins′s Integral and Collins′s EIKONAL Function and making full use of the MATLAB software, the beam transmission of RLG was simulated and calculated because of the resonator′s maladjustment. From the simulation results of three different structures, it was found that different mirrors with the same maladjustment cause different results on the beat output, and the beat signals detected from mirror M1 and M2 are different; for the small-gain lasers, the structure using the spherical mirror can easily form the stable beam structure compared with the plane mirror; from the calculated spatial coordinates xn it can be got that the centers of the Gaussian spot of clockwise and counterclockwise wave occur shift and effect the beat output of laser gyros in the certain amount of offset. This work has some instructive significance on the engineering testing and endoscopes adjustment of the laser gyro, and contributes to the improvement of measuring accuracy of laser gyro.

参考文献

[1] 王大珩.现代仪器仪表技术与设计(下卷)［M］. 北京：科学技术出版社，2002:2099-2202.

[2] 李天初.行波高斯光束Lamb理论及考虑径向分布的环形激光输出表达式［J］.中国激光，1982，10(7): 389-394.

LI Tian-chu. Lamb′s theory of traveling-wave Gaussian beams and output expressions of ring lasers considering the radial distribution ［J］. China Laser, 1982，10(7): 389-394.

[3] COLLINS S A. Lens-system diffraction integral written in terms of matrix optics［J］. J Opt Soc Amer, 1970, 60(9): 1168-1177.

[4] 吕白达. 激光光学(第三版)［M］. 3版.北京：高等教育出版社，2003 :386.

[5] 高爱华，顾樵，陆治国. 激光器腔的失调与光束质量［J］. 光子学报，1999，28(8): 763-766.

GAO Ai-hua, GU Qiao, LU Zhi-guo. The maladjustment of laser cavity and light beam quality ［J］. Acta Photonica Sinica, 1999，28(8): 763-766.

[6] 章燕申. 激光陀螺的光路控制—访德报告［J］.飞航导弹，1996，(6)：53-58.

ZHANG Yan-shen. The laser gyro′s optical control-visiting Germany ［J］. Cruise Missile, 1996，(6)：53-58.

[7] 洪熙春，黄维刚，王绍民. 失调光学系统的衍射积分公式［J］. 物理学报，1982，31(28)：1655-1663.

HONG Xi-chun, HUANG Wei-gang, WANG Shao-min. Diffraction integral formula for misaligned optical systems ［J］. Physics Letters, 1982，31(28)：1655-1663.

[8] 廖复中.环形腔中光线偏斜时的朗缪尔效应［J］.激光，1979，6(12)：1-7.

LIAO Fu-zhong. Langmuir flow effect in a ring cavity during the light deflection ［J］. Laser, 1979，6(12)：1-7.

[9] 高伯龙，姜亚南.朗缪尔流动的零漂效应［J］.国防科技大学学报，1980,(8):33-51.

GAO Bo-long, JIANG Ya-nan. Zero drift effects in the langmuir flow ［J］. Journal of Applied Sciences, 1980,(8):33-51.

[10] 顾樵.关于平凹腔的最佳设计［J］.应用激光，1987,7(1):36-37.

GU Qiao. On optimum design of a flat-concave resonator［J］. Applied Laser, 1987, 7(1):36-37.

高爱华, 何小庆, 张炜, 胡尚斌, 陆治国. 腔镜失调对激光陀螺信号输出的影响[J]. 光子学报, 2011, 40(6): 823. GAO Ai-hua, HE Xiao-qing, Zhang Wei, HU Shang-bin, LU Zhi-guo. Investigation on the Signal Output of RLG with Tilted Reflector[J]. ACTA PHOTONICA SINICA, 2011, 40(6): 823.

腔镜失调对激光陀螺信号输出的影响

关于本站 Cookie 的使用提示

全站搜索

腔镜失调对激光陀螺信号输出的影响

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索