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啁啾飞秒激光脉冲形成的光纤光栅的Bragg反射特性
引用本文:王淮生,孙大睿,张志刚,柴路,王清月.啁啾飞秒激光脉冲形成的光纤光栅的Bragg反射特性[J].物理学报,2003,52(9):2185-2189.
作者姓名:王淮生  孙大睿  张志刚  柴路  王清月
作者单位:天津大学精仪学院超快激光实验室,光电信息技术科学教育部重点实验室,天津 300072
基金项目:国家重点基础研究专项经费(批准号:G1999075201-2)、天津市自然科学基金(批准号:0038 00611)、国家自然科学基金(批准号:60178007)和中国博士后科学基金(批准号:200203216 3)资助的课题.
摘    要:在800nm飞秒脉冲激光照射下光敏玻璃As2S3光纤具有双光子吸收 现象,当一束超短激光脉冲与另一束啁啾超短激光脉冲在As2S3光纤相遇时,干涉图案将 永久地记录一个空间啁啾光栅.研究了该光栅结构与入射超短脉冲激光脉冲参数的关系,数值计算表明该光栅具有较大的Bragg反射带宽. 关键词: 啁啾光纤光栅 飞秒激光脉冲 双光子吸收效应

关 键 词:啁啾光纤光栅  飞秒激光脉冲  双光子吸收效应
文章编号:1000-3290/2003/52(09)2185-05
收稿时间:2002-09-29
修稿时间:2002年9月29日

The Bragg reflection characteristics of the fibre grating formed by chirped ultr ashort laser pulses
Wang Huai-Sheng,Sun Da-Rui,Zhang Zhi-Gang,Chai Lu and Wang Qing-Yue.The Bragg reflection characteristics of the fibre grating formed by chirped ultr ashort laser pulses[J].Acta Physica Sinica,2003,52(9):2185-2189.
Authors:Wang Huai-Sheng  Sun Da-Rui  Zhang Zhi-Gang  Chai Lu and Wang Qing-Yue
Abstract:Under the illumination of 800 nm femtosecond laser pulse, two photon absorption phenomenon can occur in the photosensitive glass As 2S 3. When a chirped femtosecond laser pulse meets with another femtosecond laser pulse in an As 2S 3 fibre, the interference pattern can be recorded permanently as a chirped grating. In this paper, the relation between the structure of the chirped fibre grating and the parameters of the incident femtosecond pulse is described. Numerical calculations show that the chirped fibre grating has a broad Bragg reflection spectrum.
Keywords:chirped fiber grating  ultrashort laser pulse  two-photon absorption  effect
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