Effects of temperature distribution on performance of SiC reflectors in periscopic laser communication terminals

tan liying; song yiwei; ma jing; fu sen; wang jian

Volume 22 Issue 11

Sep. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(11): 0-

pan yafeng, peng jianchang, song xiaoxin, et al. Output characteristics of spiral pulse forming line with outer shield and inner conductor[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

tan liying, song yiwei, ma jing, et al. Effects of temperature distribution on performance of SiC reflectors in periscopic laser communication terminals[J]. High Power Laser and Particle Beams, 2010, 22.

pan yafeng, peng jianchang, song xiaoxin, et al. Output characteristics of spiral pulse forming line with outer shield and inner conductor[J]. High Power Laser and Particle Beams, 2011, 23.

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Effects of temperature distribution on performance of SiC reflectors in periscopic laser communication terminals

1.
National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150001,China;
2.
Research Center for Space Optical Engineering,Harbin Institute of Technology,Harbin 150001,China

Publish Date: 2010-09-29

Abstract

Abstract

Effects of temperature gradient and uniform temperature on reflectors in periscopic laser communication terminals were studied. Zernike polynomials on elliptical aperture were used to fit wave-front aberration of the elliptical reflectors due to temperature distribution. RMS value, pointing error and peak intensity degradation at the receiver caused by thermal deformation were studied in inter-satellite laser communication system. The results show that the effect of temperature gradient cause drift of peak intensity and a little degradation. The pointing error reaches 2.1 μrad when temperature gradient is 14 ℃/m. The uniform temperature will cause variation of intensity distribution at the receiver and result in larger pointing error and degradation of intensity. The pointing error is le
- optical communications,
- wave-front deformation,
- zernike polynomial,
- pointing error

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