Ellipticity measurement system with double beam paths for ring laser gyroscope

YANG Hao-dong; LIANG Dong-ming; YUE Huan-yu; FAN Han-wei; LIU Li-wu

doi:10.3788/OPE.20122009.1913

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Ellipticity measurement system with double beam paths for ring laser gyroscope

Article | 更新时间：2020-08-12

- Ellipticity measurement system with double beam paths for ring laser gyroscope
- Optics and Precision Engineering Vol. 20, Issue 9, Pages: 1913-1921(2012)
- 作者机构：
  
  1. 国防科技大学光电科学与工程学院,湖南长沙,410073
  2. 中国洛阳电子装备试验中心,河南洛阳,471003
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122009.1913
  CLC： TN248
- Received：31 March 2012，
  
  Revised：23 May 2012，
  
  Published：10 September 2012
- 稿件说明：
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杨昊东, 梁冬明, 岳寰宇, 范汉伟, 刘立武. 环形激光器双光路椭圆度测量系统[J]. 光学精密工程, 2012,20(9): 1913-1921

YANG Hao-dong, LIANG Dong-ming, YUE Huan-yu, FAN Han-wei, LIU Li-wu. Ellipticity measurement system with double beam paths for ring laser gyroscope[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1913-1921
杨昊东, 梁冬明, 岳寰宇, 范汉伟, 刘立武. 环形激光器双光路椭圆度测量系统[J]. 光学精密工程, 2012,20(9): 1913-1921 DOI： 10.3788/OPE.20122009.1913.

YANG Hao-dong, LIANG Dong-ming, YUE Huan-yu, FAN Han-wei, LIU Li-wu. Ellipticity measurement system with double beam paths for ring laser gyroscope[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1913-1921 DOI： 10.3788/OPE.20122009.1913.

摘要

针对通过测量输出光椭圆度对环形激光器进行调腔的要求

研究并建立了环形激光器双光路椭圆度测量系统。计算分析了无源环形腔对S线偏光和P线偏光的频率响应特性

得出S线偏光谐振峰频率特性更适于无源环形腔的稳频。采用S线偏光作为外部输入光来提高稳频精度

搭建了环形激光器双光路稳频与测量系统。环形激光器稳频系统在10 s内就能完成稳频

稳频效率高

稳频后光强波动幅度为1.8％。提出的椭圆度测量方法使椭圆度变化幅度约为0.65％

减小了光强波动对测量精度的影响。实验显示

构建的测量系统可满足椭圆度测量的要求。

Abstract

On the basis of the requirements of cavity adjustment completed by measurement ellipticity

an ellipticity measurement system with double beam paths was researched for adjusting the cavity of a ring gyro laser. The frequency response characteristics of a square ring resonator to the S line polarized light and P line polarized light were analyzed

and the S line polarized light was chosen to stabilize the frequency of a positive resonant cavity. By inputting the S polarized beam to improve the frequency stability accurately

a frequency stabilization system and a ellipticity measurement system with double beam paths were established. By utilizing the new frequency-stabilization system and measurement methods

the frequency stabilization of the system can be realized in 10 s and the stabilization accuracy is better than 1.8%. Furthermore

the fluctuation of ellipticity has been 0.65% by the proposed method

which reduces the effect of light fluctuation on the measurement accuracy. In conclusion

the proposed system meets the needs of ellipticity measurement.

关键词

Keywords

references

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