光学学报, 2014, 34 (4): 0406004, 网络出版: 2014-03-14  

基于渐变折射率透镜的低损耗1×N微结构光纤耦合方法

Low-Loss 1×N Microstructrued Fiber Coupling Method with a Single Gradient Index Lens
作者单位
1 北京航空航天大学精密光机电一体化技术教育部重点实验室, 北京 100191
2 北京航空航天大学惯性技术国防科技重点实验室, 北京 100191
摘要
提出了一种新型的、基于单个径向渐变折射率(GRIN)透镜的1×N光纤耦合方法,并基于水平入射以及垂直斜面入射光线的传播方程建立了用于求解点光源发出的光束在GRIN透镜斜面入射后的成像点的计算方法。通过将透镜前端面加工成多斜面棱镜,将输入光分为多束,光束聚焦位置可以通过系统参数来调整;被分割开的光束经会聚、优化像差后,实现1×N低损耗耦合,并进行了仿真研究;通过优化斜面倾角、物距等关键参数实现了光纤低损耗耦合。该设计方案结构简单,易于装配,为各类光子晶体光纤、多芯光纤、光纤组束和光纤合光提供了实用的耦合方法。
Abstract
A novel method with a single gradient index (GRIN) lens for 1×N fiber coupling is proposed. A calculation and design method is founded to calculate beam focus position when a pointolite is illuminating an angular surface of a GRIN lens. In coupling module, the GRIN lens has one polyhedral end which is taken as the input port to split input light into several beams, and split beams get focused through GRIN lens. Beam focus position can be adjusted by some system parameters. These beams get focused through the GRIN lens, and couple into output fibers and fiber cores separately, meanwhile aberration is corrected. The simulation results show that the coupling models in different applying situations have high coupling efficiency by optimizing some key parameters, e.g. tilt angle of surfaces and object distance. It can be proved that the coupling method is simple in structure and easy to assemble. It provides a practical coupling method for variety of photonic crystal fibers, multi-core fibers, fiber bundle and fiber combining.
参考文献

[1] P Russell. Photonic crystal fibers [J]. Science, 2003, 299(5605): 358-362.

[2] 柴路, 胡明列, 方晓惠, 等. 光子晶体光纤飞秒激光技术研究进展[J]. 中国激光, 2013, 40(1): 0101001.

    Chai Lu, Hu Minglie, Fang Xiaohui, et al.. Advances in femtosecond laser technologies with photonic crystal fiber [J]. Chinese J Lasers, 2013, 40(1): 0101001.

[3] 张银, 陈明阳, 张永康. 新型大模场光子晶体光纤传输系统及其传输特性[J]. 中国激光, 2012, 39(12): 1205001.

    Zhang Yin, Chen Mingyang, Zhang Yongkang. Investigation of a novel large-mode-area photonic crystal fiber transmission system and its transmission characteristics [J]. Chinese J Lasers, 2012, 39(12): 1205001.

[4] M Koshiba, K Saitoh, K Takenaga, et al.. Multi-core fiber design and analysis: coupled-mode theory and coupled-power theory [J]. Opt Express, 2011, 19(26): 102-111.

[5] 孙兵, 陈明阳, 钱春霖, 等. 基于非对称三芯光子晶体光纤的宽带定向耦合器研究[J]. 光学学报, 2013, 33(7): 0706010.

    Sun Bing, Chen Mingyang, Qian Chunlin, et al.. Design of a broadband directional coupler based on an asymmetric three-core photonic crystal fiber [J]. Acta Optica Sinica, 2013, 33(7): 0706010.

[6] P K Choe, A Liu, G G King. A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array [J]. IEEE Photon Tech Lett, 2001, 13(5): 439-441.

[7] 陈明, 李剑锋, 王屹山, 等. 高功率大模场光纤激光器高阶模抑制技术的研究进展[J]. 激光与光电子学进展, 2012, 49(8): 080002.

    Chen Ming, Li Jianfeng, Wang Yishan, et al.. Progress of high-order mode-suppression technology in high-power large mode field fiber lasers[J]. Laser & Optoelectronics Progress, 2012, 49(8): 080002.

[8] H Kim, J Kim, U C Paek, et al.. Tunable photonic crystal fiber coupler based on a side-polishing technique [J]. Opt Lett, 2004, 29(11): 1194-1196.

[9] B H Lee, J B Eom, J Kim, et al.. Photonic crystal fiber coupler [J]. Opt Lett, 2002, 27(10): 812-814.

[10] L R Jaroszewicz, A K Stasiewicz, P Mar, et al.. Broadband photonic crystal fiber coupler with polarization selection of coupling ratio [C]. SPIE, 2010, 7653: 76533W.

[11] 朱晓亮, 苑立波, 刘志海, 等. 单芯光纤与双芯光纤的耦合方法与耦合机制[J]. 中国激光, 2009, 36(4): 913-917.

    Zhu Xiaoliang, Yuan Libo, Liu Zhihai, et al.. Coupling approach and mechanism of single-core and twin-core fiber [J]. Chinese J Lasers, 2009, 36(4): 913-917.

[12] 郑晶晶, 郑凯, 彭键, 等. 单芯光纤与双芯光纤的对接和熔接耦合效率分析[J]. 光学学报, 2010, 30(9): 2529-2535.

    Zheng Jingjing, Zheng Kai, Peng Jian, et al.. Analysis of splicing and splicing fusion coupling efficiency between single-core fiber and dual-core fiber [J]. Acta Optica Sinica, 2010, 30(9): 2529-2535.

[13] Y Tottori, T Kobayashi, M Watanabe. Low loss optical connection module for 7-core multi-core fiber and seven single mode fibers [J]. IEEE Photon Tech Lett, 2012, (24): 1926-1928.

[14] 帕勒里斯. 光纤通信[M]. 王江平, 刘杰, 闻传花, 译. 北京: 电子工业出版社, 2011.

    J Palais. Fiber Optic Communications [M]. Wang Jiangping, Liu Jie, Wen Chuanhua, Transl.. Beijing: Publishing House of Electronics Industry, 2011.

[15] 张丙元, 王国菊, 何京良, 等. 自聚焦透镜耦合激光二极管抽运Nd:YVO4锁模激光器的研究[J]. 光学学报, 2011, 31(7): 0714001.

    Zhang Bingyuan, Wang Guoju, He Jingliang, et al.. Passively mode lock of Nd:YVO4 laser with GRIN lens as optical coupler [J]. Acta Optica Sinica, 2011, 31(7): 0714001.

[16] L Yuan, Z Liu, J Yang, et al.. Bitapered fiber coupling characteristics between single-mode single-core fiber and single-mode multicore fiber [J]. Appl Opt, 2008, 47(18): 3307-3312.

代文, 杨远洪, 宋奎岩, 杨明伟. 基于渐变折射率透镜的低损耗1×N微结构光纤耦合方法[J]. 光学学报, 2014, 34(4): 0406004. Dai Wen, Yang Yuanhong, Song Kuiyan, Yang Mingwei. Low-Loss 1×N Microstructrued Fiber Coupling Method with a Single Gradient Index Lens[J]. Acta Optica Sinica, 2014, 34(4): 0406004.

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