Analysis of space off-axis and performance of Cassegrain optical antenna system

被引：5
|
作者：
Huang, Kai [1 ]
Yang, Huajun [1 ]
Li, Tuohui [1 ]
Li, Chenghong [1 ]
Xu, Quan [2 ]
Xie, Kang [2 ]
机构：
[1] Univ Elect Sci & Technol China, Coll Phys Elect, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Coll Optoelect Infomat, Chengdu 610054, Peoples R China
来源：
OPTIK | 2010年 / 121卷 / 18期
关键词：
Cassegram optical antenna; Off-axis; Deflection angle; Power attenuation ratio; FIBER;
D O I：
10.1016/j.ijleo.2009.03.017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The research of optical antenna is of greatest importance in the field of modern optical communication. For optical antenna, alignment of optical system is a significant factor, which influences the transmission quality of optical antenna system Antenna off-axis is one of the important factors influencing the transmission quality of optical antenna system In this paper, we analyze and numerically simulate how power attenuation ratio and gain of Cassegrain antenna vary with the antenna deflection angle and the distance that the central axis of receiving antenna deviates from z-axis, when space off-axis happens to the system. Finally, the coupling efficiency of Cassegrain antenna is tested experimentally, and the results show that the coupling efficiency of the Cassegrain antenna dramatically reduces in the case of off-axis These studies provide a theoretical basis for optical antenna system to achieve accurate alignment in optical communication (C) 2009 Elsevier GmbH. All rights reserved
引用
收藏
页码：1688 / 1692
页数：5
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