孔径匹配对中继镜系统上行传输影响的模拟与分析

J4 ›› 2013, Vol. 30 ›› Issue (3): 298-302.

孔径匹配对中继镜系统上行传输影响的模拟与分析

张京会¹,范承玉²,马慧敏³,张鹏飞²,王海涛⁴,王英俭²

中国科学院安徽光学精密机械研究所大气成分与光学重点实验室，安徽合肥 230031

收稿日期:2012-04-16 修回日期:2012-05-04 出版日期:2013-05-28 发布日期:2013-05-06
通讯作者: 范承玉（1965-），博士，研究员，主要从事激光大气传输及自适应光学校正方面的研究。 E-mail:cyfan@aiofm.ac.cn
作者简介:张京会（1981-），博士，主要从事自适应光学校正方面的研究。Email：jinghui8110@163.com

Simulation and analysis onf the effect of aperture matching on uplink propagation for relay mirror systems

ZHANG Jinghui, FAN Chengyu, MA Huimin, ZHANG Pengfei, WANG Haitao, WANG Yingjian

Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031，China

Received:2012-04-16 Revised:2012-05-04 Published:2013-05-28 Online:2013-05-06

摘要/Abstract

摘要： 利用激光大气传输四维程序，建立了双望远镜中继镜系统上行传输模型，研究了孔径匹配对中继镜系统上行传输的影响。选择去除畸变相位后的接收光场的远场峰值功率密度作为中继镜系统上行传输的性能指标，通过光束在真空中传输的计算，得到了接收口径一定时不同发射口径对应的最优发射焦距，并对不同发射功率激光在大气中上行传输的情况进行了模拟计算。结果表明，当接收孔径一定时，随着发射孔径的增大，最优发射焦距减小；增大发射孔径，可以增大临界发射功率；当发射功率较小时，在一定发射口径范围内，发射口径的变化对中继镜系统上行传输的性能指标影响不大，当发射功率较大时，增大发射口径可以有效提高中继镜系统上行传输的性能指标。

关键词: 激光技术, 中继镜, 孔径匹配, 性能指标

Abstract: The model for uplink propagation for the relay mirror systems is established, and using the 4-D code for laser propagation in the atmosphere, the effect of aperture matching on uplink propagation for relay mirror systems is simulated and analyzed by the 4-D code for laser propagation in the atmosphere. The far-field peak power density of the received beam of which the distorted phase is completely removed is selected as the evaluation function of the uplink propagation process. The optimal focal lengths for of different transmitting apertures are picked out based on the calculation in vacuum, and the uplink propagation in the atmosphere for different transmitting apertures with their respective optimal focal length is simulated. Results show that with a certain receiver aperture, the optimal focal length decreases while the transmitter diameter increases; the critical launching power increases with the increase of transmitter diameter; when the launching power is small, the change in transmitter diameter imposes little effect on the performance, while but when the launching power is high enough, the performance of the relay mirror system is improved significantly with the increase of transmitter diameter.

Key words: laser techniques, relay mirror, aperture matching, performance evaluation function

中图分类号:

张京会范承玉马慧敏张鹏飞王海涛王英俭. 孔径匹配对中继镜系统上行传输影响的模拟与分析[J]. J4, 2013, 30(3): 298-302.

ZHANG Jinghui, FAN Chengyu, MA Huimin, ZHANG Pengfei, WANG Haitao, WANG Yingjian. Simulation and analysis onf the effect of aperture matching on uplink propagation for relay mirror systems[J]. J4, 2013, 30(3): 298-302.

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