光学学报, 2019, 39 (12): 1214004, 网络出版: 2019-12-06
2017 nm和2029 nm双波长调Q锁模Tm∶LuAG激光器 下载: 1058次
Dual-Wavelength Passively Q-Switched Mode-Locked Tm∶LuAG Laser Operating at 2017 nm and 2029 nm
激光器 Tm∶LuAG激光器; 可饱和吸收体 被动调Q激光器 双波长 lasers Tm∶LuAG lasers; saturable absorber passively Q-switched lasers dual-wavelength
摘要
采用双壁碳纳米管可饱和吸收体为锁模启动元件,在Tm∶LuAG激光器中实现了输出波长分别为2017 nm和2029 nm的双波长被动调Q锁模运转。该实验装置以可调谐掺钛蓝宝石激光器为抽运源,选用透过率为3%的输出耦合镜,当吸收功率大于2292 mW时,激光运转进入稳定调Q锁模状态。最大吸收抽运功率达到6.7 W时,调Q锁模输出功率为1.28 W,斜效率为22.39%,锁模脉冲的重复频率为102 MHz,对应的单脉冲能量为12.55 nJ。
Abstract
By employing double-walled carbon nanotubes as a saturable absorber to start mode locking, we experimentally demonstrate dual-wavelength operation of a passively Q-switched, mode-locked (QML) Tm∶LuAG bulk laser at the wavelengths of 2017 nm and 2027 nm. Herein, the laser is pumped by a wavelength-tunable Ti∶sapphire solid-state laser, and when the absorbed pump power is greater than 2292 mW, the laser enters a stable QML state of operation. By using an output coupler with transmittance of 3%, when the absorbed pump power reaches 6.7 W, the QML output power is 1.28 W, corresponding to a slope efficiency of 22.39%. The repetition rate is 102 MHz, which corresponds to a single-pulse energy of 12.55 nJ.
孙锐, 陈晨, 令维军, 董忠, 张明霞, 康翠萍, 张亚妮, 许强. 2017 nm和2029 nm双波长调Q锁模Tm∶LuAG激光器[J]. 光学学报, 2019, 39(12): 1214004. Rui Sun, Chen Chen, Weijun Ling, Zhong Dong, Mingxia Zhang, Cuiping Kang, Yani Zhang, Qiang Xu. Dual-Wavelength Passively Q-Switched Mode-Locked Tm∶LuAG Laser Operating at 2017 nm and 2029 nm[J]. Acta Optica Sinica, 2019, 39(12): 1214004.