中国激光, 2010, 37 (S1): 177, 网络出版: 2010-10-29  

光子晶体光纤对260 nm紫外激光的传输特性

Transmission of 260 nm Ultraviolet Laser in Photonic Crystal Fiber
作者单位
天津大学精密仪器与光电子工程学院超快激光研究室,光电信息技术科学教育部重点实验室, 天津 300072
摘要
通过有效折射率模型分析了光子晶体光纤的无限截止单模特性, 数值模拟表明只要光纤微结构包层中空气孔直径与孔间距之比足够小, 光子晶体光纤就可以在任意波长支持单模传输。具体计算了光子晶体光纤在大于200 nm的波长范围内支持单模传输的结构参数, 为实现光子晶体光纤单模传输紫外激光提供了理论依据。实验采用光纤激光器四次谐波260 nm飞秒激光和一段小空气孔直径的光子晶体光纤, 研究了紫外激光在光子晶体光纤中的传输特性。其中光子晶体光纤纤芯直径为4.54 μm, 耦合效率大于31%。
Abstract
Properties of the endlessly single mode of photonic crystal fiber(PCF) are analyzed theoretically with the effective-index model. Numerical calculation shows that PCF can be single mode for any wavelength if the proportion of the diameter of the air holes to the pitch in the cladding is small enough. Structure parameters of a single-mode PCF for wavelength above 200 nm are calculated exactly, which provide us with theoretical instruction for the ultroviolet (UV) light single-mode delivery of PCF. Based on 260 nm femtosecond pulses output from a frequency-quadrupled fiber laser, transmission of the UV laser is experimentally demonstrated using a piece of PCF with small air hole. With a core diameter of 4.54 μm, the transmission loss and the coupling efficiency of the PCF are measured to be 0.043 dB/cm and above 31%, respectively.
参考文献

[1] . Yamamoto, L. Tao, A. Yalin et al.. Single-mode delivery of 250 nm light using a large mode area photonic crystal fiber[J]. Opt. Express, 2009, 17(19): 16933-16940.

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

[3] . A. Birks, J. C. Knight, P. S. J. Russell. Endlessly single-mode photonic crystal fiber[J]. Opt. Lett., 1997, 22(13): 961-963.

[4] . C. Knight, T. A. Birks, P. S. J. Russell et al.. Properties of photonic crystal fiber and the effective index model[J]. J. Opt. Soc. Am. A, 1998, 15(3): 748-752.

[5] . J. Bartula, J. W. Walewski, S. T. Sanders. Generation of ultraviolet broadband light in a single-mode fiber[J]. Appl. Phys. B, 2006, 84(3): 395-400.

[6] T. Birks, D. Mogilevtsev, J. Knight et al.. The analogy between photonic crystal fibres and step index fibres [C]. in Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication (OFC /IOOC), 1999, 4: 114~116

[7] . Brechet, J. Marcou, D. Pagnoux et al.. Complete analysis of the characteristics of propagation into photonic crystal fibers by the finite element method[J]. Opt. Fiber Tech., 2000, 6(2): 181-191.

[8] . Li, Y. Yao, M. Hu et al.. Analysis of the fundamental space-filling mode of photonic crystal fibres: a symmetry point of view[J]. J. Opt. A-Pure Appl. Opt., 2008, 10(7): 075302.

[9] 刘华刚, 胡明列, 刘博文 等. 基于光子晶体光纤飞秒激光技术的高功率紫外激光源 [J]. 中国激光, 2009, 36(11): 2812~2816

    Liu Huagang, Hu Minglie, Liu Bowen et al.. High power ultraviolet laser source based on photonic crystal fiber femtosecond laser system [J]. Chinese J . Lasers, 2009, 36(11): 2812~2816

[10] . Leung, M. Kulkarni, D. Krajnovich et al.. Effect of intense and prolonged 248 nm pulsed-laser irradiation on the properties of ultraviolet-grade fused silica[J]. Appl. Phys. Lett., 1991, 58(6): 551-553.

[11] . Taylor, K. Leopold, R. Brimacombe et al.. Dependence of the damage and transmission properties of fused silica fibers on the excimer laser wavelength[J]. Appl. Opt., 1988, 27(15): 3124-3134.

[12] 徐世祥, 李锡善, 张国轩. 紫外石英光纤XeCl准分子激光感生破坏特性的实验研究 [J]. 中国激光, 1994, A21(8): 645~648

    Xu Shixiang, Li Xishan, Zhang Guoxuan. The XeCl excimer laser induced damage properties of the UV silica fiber [J]. Chinese J . Lasers, 1994, A21(8): 645~648

[13] . Schenker, P. Schermerhorn, W. Oldham. Deep-ultraviolet damage to fused silica[J]. J. Vac. Sci. & Technol. B, 1994, 12(6): 3275-3279.

刘华刚, 胡明列, 栗岩峰, 宋有建, 刘博文, 柴路, 王清月. 光子晶体光纤对260 nm紫外激光的传输特性[J]. 中国激光, 2010, 37(S1): 177. Liu Huagang, Hu Minglie, Li Yanfeng, Song Youjian, Liu Bowen, Chai Lu, Wang Qingyue. Transmission of 260 nm Ultraviolet Laser in Photonic Crystal Fiber[J]. Chinese Journal of Lasers, 2010, 37(S1): 177.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!