Effects of cavity-dispersion noncoaxiality on the generation of ultrabroadband femtosecond pulses  

作　　者：JIAO ZhongXing LEI Liang HUANG ZhiLing WEN dinHui LAI Tianshu LIN WeiZhu 

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies, Department of Physics, Sun Yat-sen University, Guangzhou 510275, China

出　　处：《Chinese Science Bulletin》2008年第5期659-663,共5页

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 60678009, 60490295, 10674184 and 10274107);the Doctoral Specialized Foun-dation of China (Grant No. 20050558030)

摘　　要：The effects of cavity-dispersion noncoaxiality (CDN) on the generation of ultrabroadband femtosecond pulses in KLM Ti:sapphire laser were investigated theoretically and experimentally. It was predicted that when the laser sub-cavity works near the coaxial operation point, the limitation of CDN on the bandwidth broadening is minimum, which is favorable for ultrabroadband pulse generation. On the basis of this prediction, femtosecond pulses with bandwidth of 650 to 1000 nm were directly generated from a home built KLM Ti:sapphire laser. To our knowledge, they are the broadest bandwidth pulses produced from KLM Ti:sapphire laser with similar oscillator configuration and gain crystal length of 3 mm.The effects of cavity-dispersion noncoaxiality （CDN） on the generation of ultrabroadband femtosecond pulses in KLM Ti：sapphire laser were investigated theoretically and experimentally. It was predicted that when the laser sub-cavity works near the coaxial operation point, the limitation of CDN on the bandwidth broadening is minimum, which is favorable for ultrabroadband pulse generation. On the basis of this prediction, femtosecond pulses with bandwidth of 650 to 1000 nm were directly generated from a home built KLM Ti：sapphire laser. To our knowledge, they are the broadest bandwidth pulses produced from KLM Ti：sapphire laser with similar oscillator configuration and gain crystal length of 3 mm.

关 键 词：兰宝石激光器 空腔散射非同轴性 超宽毫微秒脉冲 激光技术 

分 类 号：TN248.1[电子电信—物理电子学]