基于Nd:YAG陶瓷的被动锁模激光器研究  

Study of passively mode-locked laser based on Nd:YAG ceramic

作　　者：马建立 张玲[2] 甘新昌 栾志浩 李星星[4] 郭伟钦 李宏峰 MA Jianli;ZHANG Ling;GAN Xinchang;LUAN Zhihao;LI Xingxing;GUO Weiqin;LI Hongfeng(Shenzhen Sunshine Laser&Electronics Technology Co.,Ltd.,Shenzhen Guangdong 518057,China;Key Lab of Semiconductor Materials Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;School of Mechanical and Electrical Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China;Joint Lab of Digital Optical Chip,Wuyi University,Jiangmen Guangdong 529020,China)

机构地区：[1]深圳光韵达光电科技股份有限公司,广东深圳518057 [2]中国科学院半导体研究所中国科学院半导体材料科学重点实验室,北京100083 [3]北京印刷学院机电工程学院,北京102600 [4]五邑大学数字光芯片联合实验室,广东江门529020

出　　处：《光通信技术》2021年第10期7-9,共3页Optical Communication Technology

基　　金：广东省重点领域研发计划项目(2018B090904002)资助;北京市实培计划项目资助;深圳市工业和信息化产业发展专项资金扶持计划项目(ZDYBH201900000008)资助;北京印刷学院基础研究重点项目(Ea201807)资助;北京市教委科研计划(KM201810015006)资助。

摘　　要：Nd:YAG陶瓷具有可大尺寸、低成本制备的特点,但基于Nd:YAG陶瓷的锁模激光器尚未得到大量验证。采用Nd:YAG陶瓷作为增益介质、半导体可饱和吸收镜(SESAM)作为锁模元件,优化设计了W型谐振腔。在泵浦功率为11.49 W时,获得了波长为1.06μm、重复频率为144 MHz和输出平均功率为1.25 W的稳定连续锁模激光,锁模激光的脉冲宽度为33.6 ps,单脉冲能量为8.7 nJ,峰值功率为0.26 kW。实验结果表明:Nd:YAG陶瓷作为增益介质,可应用于被动锁模超快皮秒激光器中。Nd:YAG ceramics have the characteristics of large size and low cost,but the mode-locked laser based on Nd:YAG ceramics has not been widely verified.Using Nd:YAG ceramic as gain medium and semiconductor saturable absorption mirror(SESAM)as mode-locked element,the W-type resonator is optimized.When the pump power is 11.49 W,1.25 W stable mode-locked laser with laser wavelength of 1.06μm and repetition frequency of 144 MHz is generated.The pulse width of the mode-locked laser is 33.6 ps,the single pulse energy is 8.7 nJ,and the peak power is 0.26 kW.The experimental results show that Nd:YAG ceramics can be used as gain medium in passively mode-locked ultrafast picosecond lasers.

关 键 词：激光二极管泵浦 ND:YAG陶瓷 被动锁模 皮秒脉冲 激光器 

分 类 号：TH248.1[机械工程—机械制造及自动化]