2.56W Single-Frequency All-Fiber Oscillator at 1720 nm

被引：16

作者：

Zhang, Junxiang ^{[1
]}

Sheng, Quan ^{[1
]}

Zhang, Lu ^{[1
]}

Shi, Chaodu ^{[1
]}

Sun, Shuai ^{[1
]}

Shi, Wei ^{[1
]}

Yao, Jianquan ^{[1
]}

机构：

[1] Tianjin Univ, Inst Laser & Optoelect, Key Lab Optoelect Informat Sci & Technol, Minist Educ, Tianjin 300072, Peoples R China

来源：

ADVANCED PHOTONICS RESEARCH | 2022年 / 3卷 / 02期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

optical bistability; saturable absorption effects; single-frequency fiber oscillators; LEVEL OUTPUT POWER; 1.5; MU-M; LASER;

D O I：

10.1002/adpr.202100256

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The saturable absorption effect of unpumped, rare earth-doped fiber can be used as a method of achieving single-frequency operation in fiber lasers. This effect in thulium-doped fiber is used to achieve single-frequency operation from an all-fiber oscillator centered at 1720 nm. The characteristics of the saturable absorption effect are carefully studied and numerous operating regimes are identified wherein the oscillating state and frequency output characteristics of the laser can be manipulated via the injection of auxiliary pump light to the saturable absorber. A record single-frequency output power of 2.56W at 1720 nm is obtained; the slope efficiency is 44% and the laser linewidth is 3.3 kHz. The power scaling of the laser is only limited by the available power of the single-mode 1570 nm pump source. Herein, new insights into methods of generating high-power, single-frequency emission from all-fiber oscillators are offered.

引用

页数：7

共 25 条

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