Carrier-envelope phase locking of 5 fs amplified Ti:sapphire laser pulse at 1 kHz repetition rate

作     者：DU Qiang ZHU JiangFeng TENG Hao YUN ChenXia WEI ZhiYi 

作者机构：Laboratory of Optical Physics Institute of Physics Chinese Academy of Sciences Beijing 100080 China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2008年第53卷第5期

页      面：671-675页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 60490281, 60621063 and 60608003) the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KJCX-SW-W14) the National Basic Research Program of China (Grant No. 2007CB815104) 

主　　题：兰宝石激光器 载波包络 锁相环 循环脉冲 

摘      要：This paper reports the carrier-envelop phase (CEP) locking for the 5 fs re-compressed laser pulse generated from a chirped pulse amplified (CPA) Ti:sapphire laser at 1 kHz repetition rate. A phase locking feedback system with two loops was designed to control the fast fluctuation arising from the seeding laser and the slow fluctuation arising from the sub-mJ amplified pulse. The principle and structure of the phase control system, including the CEP detection, servo loop design and phase locking result, are analyzed. The experiment shows that our phase locking system can be well used to establish the stable phase locking of few-cycle amplified laser pulse, and the CEP variation of below 53 mrad (rms) was demonstrated during a locking period of more than 3 h.