第22卷第10期 2014年10月
文章编号
1004-924X(2014)102622-05
光学精密工程
Optics and Precision Engineering
精密光纤延迟线的设计及实验验证
赵新才，，陶世兴，刘宁文，温伟峰，彭其先
（中国工程物理研究院流体物理研究所，四川绵阳621900）
Vol.22
No.10 Oct.2014
摘要：为了解决光纤延迟线研制中高延迟精度和低插入损耗相互矛盾的间题，提高延线制作的工程可行性，提出了由基于光纤组合透镜准直器，角维校镜反射镜的光学结构和滚珠丝杠等机械结构组成的延迟线系统模型，介绍了光纤延遇线的构成和基本原理；根据项目研制的具体要求，重点设计了波长在1550nm的关键器件一一光纤准直器和角锥校镜；然后，进行了光学辅助机械结构的设计和组装；最后，采用光纤激光器完成了光学校准和数据测试。实验结果表明：该延退线在延迟距离为1～9.6cm时，耦合效率均在80.6%以上，并且时延的重复性很好，精度较高，可以满足雷达、通讯、电子对抗等各种不同电子系统的需求。
关键调：光纤延这线；角维校镜：题迟精度；插入损耗
中图分类号：TN253
文献标识码：A
doi:10,3788/OPE,20142210.2622
Design and experimentalverification ofprecisionopticalfiberdelayline
ZHAOXin-cai',TAOShi-xing,LIU Ning-wen,WEN Wei-feng,PENGQi-xian
(InstituteofFluidPhysics,ChinaAcademyofEngineeringPhysics,Mianyang621900,China)
Correspondingauthor，E-mail：zzceric@163.com
Abstract: To solve the contradiction between high delay accuracy and low insertion loss in the develop ment of an optical fiber delay line and to improve the engineering feasibility of the delay line produc tion, a delay line system model based on collimators, a cube-corner prism and a ball screw was pro posed. The composition and the basic principle of the optical fiber delay line were introduced. Then, the two key components, optical fiber collimators and cube-corner prism, were designed according to the specific requirements of the project development, After that, an optical aided mechanical structure was designed and assembled. Finally, optical correction and data testing were finished by using an op tical fiber laser. Experimental results indicate that the coupling efficiency of the delay line is better than 80. 6% within the delay distance from 1 to 9. 6 cm meanwhile maintaining higher time delay re-peatability and higher accuracy, which satisfies the requirements of radar, communications, electronic warfare for electric systems.
Key words: optical fiber delay line; cube-corner prism; delay precision;insertion loss
收稿日期：2013-12-06；修订日期：2014-02-06.
基金项目：国家重大科学仪器设备开发专项（No.2011YQ130019)；国家自然科学基金仪器专项（No.069830)；中国
工程物理研究院909专项基金资助项目（No.991100)