| 无源对称光学结构双通道光纤旋转连接器 |
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| 引用本文： | 贾大功,张红霞,井文才,张以谟.无源对称光学结构双通道光纤旋转连接器[J].光电工程,2004,31(6):17-20,23. |
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| 作者姓名： | 贾大功 张红霞 井文才 张以谟 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院,天津,300072;光电信息技术科学教育部重点实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(60377031)，天津市自然科学基金资助项目(023602411) |
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| 摘 要： | 提出一种实现双通道旋转互连的新型对称光学耦合结构,并应用光学结构设计出无源双通道光纤旋转连接器。利用自聚焦透镜发射光信号,使其通过自由空间传输,被另一个自聚焦透镜接收。在自由空间可以实现旋转连接并实现光信号的双向传输,通过分析该光学结构设计原理和光路计算,发现每组透镜中两个透镜焦距之比为 20?50,离轴距离为 4?10mm 范围时,才能保证光信道之间不发生干扰且信号持续传输。
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| 关 键 词： | 光纤旋转连接器 自聚焦透镜 对称光学系统 |
| 文章编号： | 1003-501X(2004)06-0017-04 |
| 收稿时间： | 2003/8/18 |
Passive dual-channel fibre-optic rotary connector for symmetric optical system |
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| JIA Da-gong,ZHANG Hong-xia,JING Wen-cai,ZHANG Yi-mo.Passive dual-channel fibre-optic rotary connector for symmetric optical system[J].Opto-Electronic Engineering,2004,31(6):17-20,23. |
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| Authors: | JIA Da-gong ZHANG Hong-xia JING Wen-cai ZHANG Yi-mo |
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| Abstract: | A novel symmetric optical coupling structure for realizing double-channel rotary interconnection is proposed and a passive double-channel fibre-optic rotary connector is designed by application of this structure. An optical signal emitted by a self-focusing lens will be passed through free space and received by another self-focusing lens. The rotary connection can be carried out in free space and bi-direction transmission of optical signal can be performed. Through analyzing the design principle of the optical structure and optical path calculation, it is found that when the ratio between the focal lengths for two lens is 20~50 and off-axis distance is in the range of 4~10mm, the interference will not be occurred between two optical channels and signal transmission can be lasted. |
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| Keywords: | Fibre-optic rotary connector Self-focusing lenses Symmetrical optical systems |
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