Above 45 W thermal lens compensated acousto-optically Q-switched Tm:YAP laser

被引：1

作者：

Huang, Haizhou ^{[1
]}

Li, Nan ^{[2
]}

Weng, Wen ^{[3
]}

Chen, Huaixi ^{[1
]}

Shi, Fei ^{[2
]}

Liu, Huagang ^{[2
,4
]}

Zhang, Xianzeng ^{[1
]}

Lin, Wenxiong ^{[2
]}

机构：

[1] Fujian Normal Univ, Coll Photon & Elect Engn, Minist Educ, Fujian Prov Key Lab Photon Technol,Key Lab Optoele, Fuzhou 350117, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Mat Chem & Phys, Fuzhou 350002, Peoples R China

[3] Fujian Polytech Informat Technol, Fuzhou 350003, Fujian, Peoples R China

[4] Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350108, Fujian, Peoples R China

来源：

OPTICS EXPRESS | 2025年 / 33卷 / 05期

基金：

中国国家自然科学基金;

关键词：

SLAB LASER; WAVELENGTH; YAP; COMPACT; TM/YAP;

D O I：

10.1364/OE.554644

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a high-power Q-switched 2 mu m laser with a thermal lens compensated cavity to address severe thermal lens of the Tm:YAP crystal. Robustness of the cavity design, exhibiting long thermal stable region and a broad tolerance to deviations in cavity length is verified by linear power curves at various pulse repetition frequencies in the acousto-optically Q-switching scheme, where maximum average output power of 45.8 W at 1937nm, with a pulse duration of 64 ns is obtained at a pulse repetition frequency of 20 kHz. To the best of our knowledge, this is the maximum nanosecond Q-switched laser power of solid-state Tm lasers, which provides an effective pathway to achieve high-power Q-switching in quasi three-level Er, Tm, or Yb lasers and facilitates the scenarios such as lidar, surgeries and polymer processing that require an accessible high-repetition-frequency pulsed 2 mu m laser source. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：9434 / 9445

页数：12

共 41 条

[1] A 171.4 W Diode-Side-Pumped Q-Switched 2 μm Tm:YAG Laser with a 10 kHz Repetition Rate [J].