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光学整流罩对机载激光通信光束远场发散角的影响

Influence of Optical Dome on Airborne Laser Communication Beam Far-Field Divergence Angle

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摘要

分析了同心球面光学整流罩内、外表面的球心与机载激光通信发射天线的万向节点不重合时,非对称的光学整流罩对通信光束远场发散角的影响。结果表明,在最大通信光束远场发射角约为54°的条件下,外部口径为200 mm、厚度为5 mm的K9球冠整流罩使口径为30 mm的通信光束远场发散角由126 μrad扩展到5.27~6.46 mrad,而仅由整流罩面形加工精度引起的通信光束远场发散角变化相比由整流罩光焦度引起的通信光束远场发散角变化十分微小,可以忽略不计。利用球面透镜补偿通信光束远场发散角的变化,可使通信光束在整个发射角范围内的远场发散角均小于600 μrad。

Abstract

When the centers of inner and outer surfaces of the concentric spherical surface dome and the gimbal joint of the airborne laser communication transmitting antenna are not coincidence, the influence of the asymmetry optical dome on communication beam far-field divergence angle is analyzed. The results show that, at a maximal communication beam far-field divergence angle of 54°, a K9 spherical dome with the external diameter of 200 mm and the thickness of 5 mm makes the communication beam far-field divergence angle expand to 5.27-6.46 mrad from 126 μrad. The communication beam far-field divergence angle variation purely introduced by the dome surface manufacturing precision is very tiny, and can be ignored compared with the variation introduced by the dome optical power. A lens with spherical surfaces is used to compensate the communication beam far-field divergence angle change, and the communication beam far-field divergence angle of the whole transmitting angle range is smaller than 600 μrad.

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中图分类号:TH74

DOI:10.3788/lop54.040604

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金(91338116,91438204)、吉林省教育厅基金([2016]369,[2016]366)、长春理工大学青年科学基金(WQNJJ-2016-15)

收稿日期:2016-11-01

修改稿日期:2016-12-21

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王超:长春理工大学光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022长春理工大学空地激光通信技术重点学科实验室, 吉林 长春 130022
江伦:长春理工大学光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022长春理工大学空地激光通信技术重点学科实验室, 吉林 长春 130022
佟首峰:长春理工大学光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022长春理工大学空地激光通信技术重点学科实验室, 吉林 长春 130022
李英超:长春理工大学光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022长春理工大学空地激光通信技术重点学科实验室, 吉林 长春 130022
刘壮:长春理工大学光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022长春理工大学空地激光通信技术重点学科实验室, 吉林 长春 130022

联系人作者:王超(nicklo19992009@163.com)

备注:王超(1986-),女,博士,讲师,主要从事空间激光通信中光学设计方面的研究。

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引用该论文

Wang Chao,Jiang Lun,Tong Shoufeng,Li Yingchao,Liu Zhuang. Influence of Optical Dome on Airborne Laser Communication Beam Far-Field Divergence Angle[J]. Laser & Optoelectronics Progress, 2017, 54(4): 040604

王超,江伦,佟首峰,李英超,刘壮. 光学整流罩对机载激光通信光束远场发散角的影响[J]. 激光与光电子学进展, 2017, 54(4): 040604

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