基于SESAM的Yb∶KYW飞秒激光器的研究  

Continuous-wave mode-locked all-solid-state femtosecond Yb∶KYW laser based on SESAM

作　　者：刘凤芹[1] 张百涛[2] 孙晓莉 孙尚倩[1] 高成勇[1] 韩广兵[1] 徐建强[1] LIU Feng-qin;ZHANG Bai-tao;SUN Xiao-li;SUN Shang-qian;GAO Cheng-yong;HAN Guang-bin;XU Jian-qiang(National Physical Experiment Teaching Demonstration Center,School of Physics Shandong University,Jinan 250100,China;State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China)

机构地区：[1]山东大学物理学院物理国家级实验教学示范中心,山东济南250100 [2]山东大学晶体材料国家重点实验室,山东济南250100

出　　处：《物理实验》2020年第2期16-21,共6页Physics Experimentation

基　　金：国家自然科学基金项目（No.61675116）;山东大学教改项目（No.2019Y056,No.2019Y061）

摘　　要：用激光二极管泵浦Yb∶KYW激光晶体,SESAM半导体可饱和吸收镜作为饱和吸收元件,实现了连续锁模的飞秒激光器的稳定运转.研究了全固态飞秒激光器的谐振腔设计、色散计算与补偿、SESAM调制深度和超快脉冲特性.使用锁模调制深度为0.8%,2.4%和3.0%的SESAM,实现了最窄脉宽为365 fs,最高输出功率为253 mW的锁模脉冲输出.A diode-pumped continuous-wave mode-locked femtosecond Yb∶KYW laser based on SESAM was successfully achieved.The properties of all-solid-state femtosecond lasers were systematically studied from the aspects of cavity design,dispersion calculation and compensation,modulation depth of SESAM and ultrafast pulse characteristic,respectively.SESAM with different modulation depth of 0.8%,2.4%,3.0%was applied in Yb∶KYW laser.The mode-locked laser with the pulse as short as 365 fs and the output power up to 253 mW was realized.

关 键 词：锁模激光器 谐振腔 SESAM Yb∶KYW 色散补偿 

分 类 号：TN248.1[电子电信—物理电子学]