全固态近红外、蓝光飞秒激光系统的实验研究  

Expenriment Study of All-solid-state Near-infrared and Blue Femtosecond Laser System

作　　者：白晋涛[1] 黄圣鸿[2] 于连君[1] 王屹山[1] 陈国夫[1] 

机构地区：[1]中国科学院西安光学精密机械研究所,西安710068 [2]西北大学光子学与光子技术研究所,西安710069

出　　处：《量子电子学报》2001年第B12期45-49,共5页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金的资助.

摘　　要：利用棱镜对引进频谱空间啁啾来补偿飞秒激光二次谐波产生中的相位失配，提高了倍频效率．建立了一套全固态、多波长（１０６４ｎｍ，５３２ｎｍ；８２３ｎｍ；４０２ｎｍ）飞秒脉冲激光系统．Ｎｄ：ＹＶＯ４激光器输出的１０６４ｎｍ激光功率可达 １０ Ｗ； ５３２ｎｍ绿光激光最高功率可达 ５．６ Ｗ．当用 ２．５ Ｗ绿光激光泵浦时，从钛宝石激光器及经 ＢＢＯ倍频可分别输出中心波长为８２３．１ｎｍ和 ４０２ ｎｍ、平均功率 ３００ ｍｗ和 ７３ ｍｗ、谱宽 ３２．３ ｎｍ和５．１ｎｍ、脉宽 ２２ ｆｓ和 ３３．３ ｆｓ、重复率 １０８ ＭＨｚ的近红外和蓝光飞秒激光．整个系统具有结构紧凑、倍频效率高、运行稳定的特点．In order to increase the conversion effciency of SHG, we have employed the frequency space chirp technology by introducing a pair of prisms to compensate the phase dismatching over a broad range of optical wavelengths. Based on this, An all-solid-state multi-wavelength (1064 nm, 532 nm, 823.1 nm, 402 nm) femtosecond laser system is established. The maximum 10 W 1064 nm infrared laser and 5.6 W green laser are obtained. SHG crystal BBO are used to generate different wavelengths. The average output power of 300 mW near-infrared and 73 mW blue femtosecond laser at repetition rate of 108 MHz are obtained at 2.5 W green pumping power. The spectral FWHM are 32.3 nm and 5.1 nm, they can sustain pulses of 22 fs and 33.3 fs, respectively. This system has compacted structure, high conversion efficiency of SHG, high stability and safety operation.

关 键 词：红外 全固态激光 实验 蓝光飞秒激光系统 

分 类 号：TN248.1[电子电信—物理电子学]