All-Fiber Wavelength-Tunable Narrow-Linewidth Polarization-Maintaining Tm-Doped Fiber MOPA System

被引：0

作者：

Sun, Tianran ^{[1
,2
]}

Su, Xinyang ^{[1
,2
]}

Zhang, Yunhong ^{[1
,2
]}

Zhang, Huaiwei ^{[1
,2
]}

Xu, Tianjia ^{[3
]}

Zheng, Yi ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Sch Phys Sci & Engn, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China

[3] Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China

来源：

PHOTONICS | 2022年 / 9卷 / 10期

基金：

中国国家自然科学基金;

关键词：

tunable; all-fiber; polarization-maintaining; Tm-doped fiber; master oscillator power amplifier (MOPA); optimal fiber length; LASER;

D O I：

10.3390/photonics9100778

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An all-fiber wavelength-tunable narrow-linewidth polarization-maintaining (PM) Tm-doped fiber master oscillator power amplifier (MOPA) system is presented. We demonstrate an all-fiber ring cavity Tm-doped fiber master-oscillator (MO) with a tuning range of 110 nm (from 1925 to 2034 nm). The maximum output power of 459 mW is obtained at 1992.9 nm for 16 W of launched pump power at 793 nm, corresponding to a slope efficiency of 5.6% concerning launched pump power. By using a one-stage Tm-doped fiber amplifier combined with a high gain of >10 dB, the maximum slope efficiency is 12.6% and the output power is 5.65 W at 1993 nm. The 3 dB linewidth is less than 0.5 nm, M-2 approximate to 1.25, and the polarization extinction ratio (PER) reaches 21.4 dB. The influence of different active fiber lengths on laser amplification is also studied.

引用

页数：8

共 19 条

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