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摘要:本文提出了一种全玻璃材料的光纤耦合器以实现高精度，高稳定的干涉测量。首先，介绍了干涉测量系统的工作原理以及光纤耦合器的系统设计，然后通过理论分析选取了非球面透镜，并根据具体的透镜参数进行了数值分析以及软件分析。接着进行了光束参数匹配度以及光束矢量匹配度的容差分析以及结构的热分析。最后结合理论分析以及精密的装调手段完成了光纤耦合器的制作。实验结果表明：光斑尺寸相对于仿真结果的误差约为3.4%，两光斑尺寸差异为0.9%，偏心距离低于40 μm，夹角约为60 μrad，基本满足干涉测量系统的使用要求。Abstract:A fiber-optic coupler with all glass materials is presented in this paper to realize high-precision, ultrastable interferometry. Firstly, we introduce the working principle of interferometry systems and the design of the fiber-optic coupler. Secondly, through theoretical analysis, selection of aspheric lenses is performed based on specific parameters of the lenses, which are investigated using numerical and software analysis. Then, we carry out a tolerance analysis of matching degrees of beam parameters and beam vectors, along with a thermal analysis of the structures. Finally, by combining theoretical analysis with precise adjustment, the manufacturing process of the fiber-optic coupler is finalized. Experimental results indicate that the error of the spot size compared to the result of simulations is about 3.4%. The difference between two beams'spot size is about 0.9%, their center distance is less then 40 μm and their included angle is about 60 μrad. This data can satisfy the application requirements of the interferometric system.
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图 6光路示意图(a)及16个时刻光强图(b)
Figure 6.Schematic diagram of optical path(a) and energy diagrams on detector at 16 moments(b)
图 7拍频信号及其信号对比度与Δx关系曲线
Figure 7.Related curve of beat signal and signal contrast varying with Δx
图 920 ℃温度波动下透镜及支撑结构的有限元分析
Figure 9.Finite element analysis of a lens and its supporting structure under the condition of 20 ℃ temperature change
表 1光纤耦合器组成部分及其功能
Table 1.Components of fiber optic coupler and their corresponding functions
序号 部件名称 功能 1 保偏光纤跳线 发射光束 2 光纤支座 固定支撑光纤头 3 非球面透镜 准直光束 4 透镜U形支座 固定支撑透镜 5 偏振分束镜 控制出射光的偏振状态 6 玻璃基板 用来提供部件的安装面并与干涉大基板粘接 
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表 2透镜名义尺寸参数
Table 2.Nominal parameters of lens
名义尺寸 参数值 透镜厚度/mm 5.258 透镜口径/mm 5 1 064 nm波长下折射率 1.592 1 064 nm波长下焦距 6.294 前表面 后表面 曲率半径/mm -14.45 4.33 2次系数 -105.23 -0.846 9 四次非球面系数 -1.059 4×10-3 0.521 51×10-3 六次非球面系数 76.926×10-6 -6.876 6×10-6 面型 RMS≤0.087, PV≤0.270 工作距离/mm 3.397 下载:
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[1] 罗子人, 白姗, 边星, 等.空间 干涉引力波探测[J].力学进展, 2013, 43(4):415-447.http://d.old.wanfangdata.com.cn/Periodical/twxjz201501004LUO Z R, BAI SH, BIAN X,et al.. Gravitational wave detection by space laser interferometry[J].Advances in Mechanics, 2013, 43(4):415-447.(in Chinese).http://d.old.wanfangdata.com.cn/Periodical/twxjz201501004 [2] 王智, 马军, 李静秋.空间引力波探测计划-LISA系统设计要点[J].中国光学, 2015, 8(6):980-987.//www.illord.com/CN/abstract/abstract9334.shtmlWANG ZH, MA J, LI J Q. Space-based gravitational wave detection mission:design highlights of LISA system[J].Chinese Optics, 2015, 8(6):980-987.(in Chinese).//www.illord.com/CN/abstract/abstract9334.shtml [3] 朱少丽, 徐秋霜, 刘德森.自聚焦透镜在光纤准直器中的应用分析[J].西南师范大学学报(自然科学版), 2004, 29(3):379-382.doi:10.3969/j.issn.1000-5471.2004.03.015ZHU SH L, XU Q SH, LIU D S. The analysis of GRIN in optical fiber collimator[J].Journal of Southwest China Normal University(Natural Science Edition), 2004, 29(3):379-382.(in Chinese)doi:10.3969/j.issn.1000-5471.2004.03.015 [4] PALAIS J C. Fiber coupling using graded-index rod lenses[J].Applied Optics, 1980, 19(12):2011-2018.doi:10.1364/AO.19.002011 [5] 龚文杰.C-Lens准直器特性的研究[D].哈尔滨: 哈尔滨工业大学, 2006.GONG W J. Study on the properties of C-Lens collimator[D]. Harbin: Harbin Institute of Technology, 2006.(in Chinese) [6] 丁原, 王智, 杨文波.光纤准直器结构研究与设计[J].长春大学学报, 2005, 15(2):8-11..doi:10.3969/j.issn.1009-3907-B.2005.02.004DING Y, WANG ZH, YANG W B. Research and design of fiber collimator[J].Journal of Changchun University, 2005, 15(2):8-11.(in Chinese).doi:10.3969/j.issn.1009-3907-B.2005.02.004 [7] 雷成敏, 谷炎然, 陈子伦, 等.高功率全光纤侧面抽运耦合器研究进展[J].光学 精密工程, 2018, 26(7):1561-1569.http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201807001LEI CH M, GU Y R, CHEN Z L,et al.. Developments of high power all-fiber side-pumping combiner[J].Opt. Precision Eng, 2018, 26(7):1561-1569.(in Chinese)http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201807001 [8] 卢亚雄, 吕百达.矩阵光学[M].大连:大连理工大学出版社, 1989:118-188.LU Y X, LV B D.Matrix Optics[M]. Dalian:Dalian University of Technology Press, 1989:118-188.(in Chinese). [9] 卢亚雄, 杨亚培, 陈淑芬. 束传输与变换技术[M].成都:电子科技大学出版社, 1999:20-80.LU Y X, YANG Y P, CHEN SH F.Laser Transmission and Transform Technology[M]. Chengdu:Press of Electron Technology University, 1999:20-80.(in Chinese) [10] 杨光磊, 井长龙, 裴治棋, 等.固态体积式真三维立体显示器[J].液晶与显示, 2015, 30(1):137-142.http://d.old.wanfangdata.com.cn/Periodical/yjyxs201101022YANG G L, JING CH L, PEI ZH Q,et al.. Solid-state volumetric true 3D display[J].Chinese Journal of Liquid Crystals and Displays, 2015, 30(1):137-142.(in Chinese)http://d.old.wanfangdata.com.cn/Periodical/yjyxs201101022 [11] 张一谟.应用光学(上册)[M].北京:北京工业出版社, 1992.ZHANG Y M.Applied Optics(the upper book)[M]. Beijing:Beijing Industrial Press, 1992.(in Chinese) [12] 杜木青, 张伶莉, 刘永军.液晶及其不同填充结构对光子晶体光纤传输特性的影响[J].液晶与显示, 2018, 33(2):116-122.http://d.old.wanfangdata.com.cn/Periodical/yjyxs201802003DU M Q, ZHANG L L, LIU Y J. Effect of liquid crystal and its different filling structure on the transmission properties of photonic crystal fiber[J].Chinese Journal of Liquid Cryostals and Displays, 2018, 33(2):116-122.(in Chinese)http://d.old.wanfangdata.com.cn/Periodical/yjyxs201802003 [13] 姚东, 李钰鹏, 赵亚, 等.适用于光黏工艺的干涉仪公差保证方法[J].光学 精密工程, 2018, 26(8):1945-1953.http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201808015YAO D, LI Y P, ZHAO Y,et al.. Tolerance assurance of interferometer for optical HCB process[J].Opt. Precision Eng., 2018, 26(8):1945-1953.(in Chinese)http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201808015 [14] 梅贵, 翟岩, 曲贺盟, 等.离轴三反系统的无应力装调[J].光学 精密工程, 2015, 23(12):3414-3421.http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201512018MEI G, ZHAI Y, QU H M,et al.. Stress-free alignment of off-axis three-mirror system[J].Opt. Precision Eng., 2015, 23(12):3414-3421.(in Chinese)http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201512018 -
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