1.2 W single-frequency Tm3+/Ho3+ co-doped fiber oscillator at 2050 nm

被引：5

作者：

Shi, Chaodu ^{[1
,2
]}

Jiang, Peiheng ^{[1
,2
]}

Fu, Shijie ^{[1
,2
]}

Sheng, Quan ^{[1
,2
]}

Chen, Lin ^{[3
]}

Shi, Wei ^{[1
,2
]}

Fu, Cailing ^{[3
]}

Wang, Yiping ^{[3
]}

Yao, Jianquan ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Optoelect Informat Technol, Minist Educ, Tianjin 300072, Peoples R China

[3] Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

来源：

OPTICS LETTERS | 2023年 / 48卷 / 23期

基金：

中国国家自然科学基金;

关键词：

MU-M; LASER; POWER; EFFICIENCY; MW;

D O I：

10.1364/OL.502554

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, a watt-level single-frequency fiber oscillator at 2050 nm was demonstrated for the first time, to the best of our knowlegde, in a linear laser cavity with a piece of an un-pumped Tm3+/Ho3+ co-doped fiber serving as a saturable absorber. With delicate optimization of mode filtering effect of the dynamic gratings formed in the saturable absorber, a maximum single-frequency laser output power of 1.2 W was achieved under a total bidirectional pump power of 5.8 W at 1570 nm, and the corresponding optical efficiency is 20.7%. This is, to the best of our knowledge, the highest power of a single-frequency fiber oscillator at the wavelength above 2 mu m.

引用

页码：6144 / 6147

页数：4

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