摘要
分析了棱镜型多通道光纤旋转连接器的结构和原理以及解旋转机制,并由此设计了一种新型的应用方双柱面解旋转棱镜结构的双通道光纤旋转连接器,该方双柱面棱镜是一种解旋转棱镜,棱镜两侧边界面为对称柱面,这样的结构可使从一侧入射的光线经折射到达另一侧柱面对称位置后平行射出,从而实现解旋转。分析了新型结构的光纤旋转连接器的耦合特性,结果表明,其损耗主要由机械误差和解旋转棱镜球差所产生。数值模拟结果表明,该结构的光纤旋转连接器的插入损耗<2.0 dB,这一性能完全能满足雷达等相关军事装备对双通道光纤旋转连接器的应用要求。
After analyzing the principle of a de rotating prism for dual channel fiber optical rotary joint,a novel dual-channel optical rotary joint using square cylinder de-rotating prism was proposed. The analysis results for coupling characteristic of this optical rotary joint indicate that its insert loss mainly comes from the mechanical inaccuracy and the spherical aberration of de-rotating prism. The insert loss is lower than 2.0 dB according to the results of numerical simulation, which meets the requirement for military equipment such as radar system, and has widespread application prospect.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2008年第10期1836-1840,共5页
Optics and Precision Engineering
基金
安徽省科技攻关项目(No.06012067B)
安徽省高等学校青年教师科研“资助计划”项目(No.05010209)
关键词
旋转连接器
解旋转棱镜
自聚焦透镜
准直系统
rotary joint
de-rotating prism
Gradient-index （GRIN） lens
collimating system
