| 非均匀微结构光纤中超连续光的产生和传输 |
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| 引用本文： | 胡明列,王清月,栗岩锋,王专,倪晓昌,柴路,张志刚,章若冰,侯蓝田,李曙光,周桂耀. 非均匀微结构光纤中超连续光的产生和传输[J]. 中国激光, 2004, 31(5): 67-569 |
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| 作者姓名： | 胡明列 王清月 栗岩锋 王专 倪晓昌 柴路 张志刚 章若冰 侯蓝田 李曙光 周桂耀 |
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| 作者单位： | 1. 天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072
2. 燕山大学红外光纤与传感研究所,河北,秦皇岛,066004 |
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| 基金项目： | 国家重点基础研究 (编号 :G19990 75 2 0 1和 2 0 0 3CB314 90 4 )，国家自然科学基金(编号 :6 0 2 780 0 3)，国家高技术研究发展计划“86 3”基金(编号:2 0 0 3AA3110 10 )资助项目 |
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| 摘 要： | 报道了利用自行拉制的具有大空气比、小纤芯的非均匀微结构光纤同纳焦耳量级的飞秒激光脉冲相互作用的试验研究。大空气比所带来的大折射率差能将传输的光场强烈地局域在纤芯中，大大增强了非线性效应，所以在1～2cm的传输距离内，便有白光产生，传输60cm后，输入的24nm，35fs飞秒脉冲就展宽成超过一个倍频程(Octave)(390～1050nm)的超连续光谱，并且由于其包层具有非均匀分布的大小不等的空气孔，从而在传输过程中观察到由这种结构形成的非完全光子带隙影响下，侧向光泄露呈现颜色变化的新现象。
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| 关 键 词： | 光电子学 微结构光纤 飞秒脉冲激光 超连续光谱 光子带隙 |
| 收稿时间： | 2003-01-27 |
Supercontinuum Generation and Transmission in a Random Distorted Microstructure Fiber |
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| HU Ming lie ,WANG Qing yue ,LI Yan feng ,WANG Zhuan ,NI Xiao chang ,CHAI Lu ,ZHANG Zhi gang ,ZHANG Ruo bing ,HOU Lan tian ,LI Shu guang ,ZHOU Gui yao Laboratory of Optoelectronics Information Science , Technology,Ministry of Education,College of Precision Instrument and Optoeletronics Engineering,Tianjin University,Tianjin ,China Institute of Infrared Fiber and Sensor,Yanshan University,Qinhuangdao,Heibei ,China. Supercontinuum Generation and Transmission in a Random Distorted Microstructure Fiber[J]. Chinese Journal of Lasers, 2004, 31(5): 67-569 |
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| Authors: | HU Ming lie WANG Qing yue LI Yan feng WANG Zhuan NI Xiao chang CHAI Lu ZHANG Zhi gang ZHANG Ruo bing HOU Lan tian LI Shu guang ZHOU Gui yao Laboratory of Optoelectronics Information Science & Technology Ministry of Education College of Precision Instrument Optoeletronics Engineering Tianjin University Tianjin China Institute of Infrared Fiber Sensor Yanshan University Qinhuangdao Heibei China |
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| Affiliation: | HU Ming lie 1,WANG Qing yue 1,LI Yan feng 1,WANG Zhuan 1,NI Xiao chang 1,CHAI Lu 1,ZHANG Zhi gang 1,ZHANG Ruo bing 1,HOU Lan tian 2,LI Shu guang 2,ZHOU Gui yao 2 11Laboratory of Optoelectronics Information Science & Technology,Ministry of Education,College of Precision Instrument and Optoeletronics Engineering,Tianjin University,Tianjin 300072,China 2Institute of Infrared Fiber and Sensor,Yanshan University,Qinhuangdao,Heibei 066004,China |
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| Abstract: | A random distributed microstructure fiber is demonstrated, and supercontinuum light with a spectrum more than one octave (390～1050 nm) was generated in 60 cm microstructure fiber by the femtosecond pulse laser with a duration of 35 fs and a energy of several nanojoules per pulse. The large refractive-index step between silica and air allows light to be concentrated into a very small area and resulting in those enhanced nonlinear effects. Some new phenomena is observed when the supercontinuum light transmits in this fiber due to its incomplete photonic band gap, such as the color variation along the fiber. |
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| Keywords: | optoelectronics microstructure fiber femtosecond laser supercontinuum photonic band gap |
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