Analysis and test of transmit-receive isolation of off-axis three-mirror anastigmat optical antenna applied to laser communication

doi:10.1080/09500340.2020.1823505

	Analysis and test of transmit-receive isolation of off-axis three-mirror anastigmat optical antenna applied to laser communication
	Li, Hua 1,2; Fan, Zhenjie 1,2; Sun, Wei 1,2; Deng, Chao 1,2; Han, Weiqiang 1,2
刊名	Journal of Modern Optics
	2020-07-28
卷号	67 期号:13 页码:1217-1225
关键词	Off-axis TMA optical antenna isolation roughness backscattered laser communication
ISSN号	0950-0340
DOI	10.1080/09500340.2020.1823505
文献子类	期刊论文
英文摘要	The bi-directional duplex working mode of a transmit-receive integrated optical antenna in laser communication systems has a rigorous requirement on transmission and receiver(T/R) isolation. By using an off-axis three-mirror anastigmat (TMA) optical antenna, backscattered can be significantly reduced, thus achieving high T/R isolation. This paper proposes to design the light exit angle of 5 or larger in the off-axis TMA optical antenna and use the equivalent surface roughness (ESR) to evaluate the surface scattering characteristics of reflector in optical antenna. Therefore, by increasing the ESR of reflector, the isolation of the optical antenna can be improved. In an isolation measurement experiment, the measured isolation of the F150mm off-axis TMA optical antenna was 73 dB, which is consistent with the simulation result. The achieved T/R isolation level meets the requirements for acquiring, tracking, and communication of satellite laser communication systems. © 2020 Informa UK Limited, trading as Taylor & Francis Group.
出版地	ABINGDON
WOS研究方向	Optics
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000574968700001
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10076]
专题	空天部
作者单位	1.Key Laboratory of Science and Technology on Space Optoelectronic Precision Measurement, CAS, Chengdu, China 2.Institute of Optics and Electronics of Chinese Academy of Sciences, Chengdu, China;
推荐引用方式 GB/T 7714	Li, Hua,Fan, Zhenjie,Sun, Wei,et al. Analysis and test of transmit-receive isolation of off-axis three-mirror anastigmat optical antenna applied to laser communication[J]. Journal of Modern Optics,2020,67(13):1217-1225.
APA	Li, Hua,Fan, Zhenjie,Sun, Wei,Deng, Chao,&Han, Weiqiang.(2020).Analysis and test of transmit-receive isolation of off-axis three-mirror anastigmat optical antenna applied to laser communication.Journal of Modern Optics,67(13),1217-1225.
MLA	Li, Hua,et al."Analysis and test of transmit-receive isolation of off-axis three-mirror anastigmat optical antenna applied to laser communication".Journal of Modern Optics 67.13(2020):1217-1225.