Electro-optically Q-switched Tm/Ho: YLF laser via polarization separation between the Tm laser and Ho laser in a coupled cavity

被引：3
|
作者：
Weng, Wen [1 ,2 ,3 ,4 ]
Huang, Haizhou [1 ,3 ]
Wu, Hongchun [1 ,2 ]
Li, Jinhui [1 ,3 ]
Zhang, Zheng [1 ,2 ,4 ]
Lin, Zixiong [1 ,2 ]
Deng, Jing [1 ,2 ]
Ye, Hui [1 ,3 ]
Lin, Wenxiong [1 ,3 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Fujian Sci & Technol Innovat Lab Optoelectcron Inf, Fuzhou 350108, Peoples R China
[4] Adv Energy Sci & Technol Guangdong Lab, Huizhou 116023, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2023年 / 532卷
基金：
中国国家自然科学基金;
关键词：
Laser; Electro-optical Q-switching; Coupled cavity; Infrared light; POWER;
D O I：
10.1016/j.optcom.2022.129248
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate electro-optical Q-switching in a direct 792 nm diode-pumped composite Tm/Ho:YLF laser. Spectral analyses on Tm:YLF and Ho:YLF crystals were studied in detail. A coupled cavity consisting of two identical bi-concave sub-cavities was developed for polarization separation and ensuring rigorous mode -matching between the cr-polarized Tm:YLF and pi-polarized Ho:YLF lasers intra-cavity. Together with the negative thermal-optical coefficient with weak thermal lensing of the fluoride host, near diffraction limited Q-switched Ho laser with maximum average power of 389 mW and peak power of 3.3 kW at 2051 nm were obtained at pulse repetition rates of 5 kHz and 1 kHz respectively, which benefits a compact, accessible pulsed seed source at 2.1 mu m.
引用
收藏
页数：7
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