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

页数：7

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