Tm,Ho:YLF waveguide lasers at 2.05 μm

被引：6

作者：

Bai, Zichen ^{[1
]}

Chen, Zhixiang ^{[1
,2
]}

Xiong, Yujie ^{[1
]}

Liu, Hongliang ^{[2
]}

Gao, Siying ^{[1
]}

Ren, Yingying ^{[3
]}

Zhao, Xingjuan ^{[4
]}

Liu, Fengqin ^{[1
]}

Jia, Yuechen ^{[1
]}

Chen, Feng ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China

[2] Nankai Univ, Inst Modern Opt, Tianjin Key Lab Microscale Opt Informat Sci & Tech, Tianjin 300350, Peoples R China

[3] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250358, Peoples R China

[4] Shandong Jianzhu Univ, Sch Sci, Jinan 250101, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 08期

基金：

中国国家自然科学基金;

关键词：

CRYSTALS; TM;

D O I：

10.1364/OL.520576

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we report on the first, to our knowledge, 2.05- mu m laser based on femtosecond-laser direct written (FsLDW) Tm,Ho:YLF cladding waveguides. A channel waveguide with a 90- mu m diameter "fiber -like" low -index cladding is fabricated in a 6 at. % Tm 3+ , 0.4 at. % Ho 3+ :LiYF 4 crystal by FsLDW. Pumped by Ti:sapphire laser at 795.1 nm, the fabricated waveguide supports efficient lasing oscillation at 2050 nm with a maximum output power of 47.5 mW, a minimum lasing threshold of 181 mW, and a slope efficiency of 20.1%. The impacts of cavity conditions and polarizations of the pump light on the obtained lasing performance are well studied. The experimental results obtained in this study demonstrate the great potential of utilizing Tm,Ho:YLF and FsLDW for the development of durable mid -infrared lasers featuring compact designs. (c) 2024 Optica Publishing Group

引用

页码：1977 / 1980

页数：4