Single Longitudinal Mode 2081 nm Thulium Doped Fiber MOPA Laser With Free-Space Design

Wei Liu; Youlun Ju; Tongyu Dai; Jinhe Yuan; Chao Liu; Qiang Liu

doi:10.1002/mop.70270

Single Longitudinal Mode 2081 nm Thulium Doped Fiber MOPA Laser With Free-Space Design

Wei Liu^*
, Youlun Ju
, Tongyu Dai
, Jinhe Yuan
, Chao Liu
, Qiang Liu

^*Corresponding author for this work

School of Astronautics

Daqing Petroleum Institute
Heilongjiang University

Research output: Contribution to journal › Article › peer-review

Abstract

A single longitudinal mode thulium doped fiber master-oscillator-power-amplifier (MOPA) laser operating at wavelength of 2081 nm has been developed. The MOPA system employs a free-space structure with a single longitudinal mode operating Ho:YAG laser serving as the master oscillator, and a Tm-doped fiber is used for power amplifier. A single longitudinal mode laser with an output power of 7.81 W was extracted from the amplifier by injecting 173 mW of seed laser into the Tm-doped fiber. The beam quality factor was measured as M² ~ 1.87. To our knowledge, this is the first study on the amplification of a 2 μm solid state single longitudinal mode laser in Tm-doped fibers.

Original language	English
Article number	e70270
Journal	Microwave and Optical Technology Letters
Volume	67
Issue number	6
DOIs	https://doi.org/10.1002/mop.70270
State	Published - Jun 2025

Keywords

Ho:YAG
master-oscillator-power-amplifier
single longitudinal mode
thulium doped fiber

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10.1002/mop.70270

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title = "Single Longitudinal Mode 2081 nm Thulium Doped Fiber MOPA Laser With Free-Space Design",

abstract = "A single longitudinal mode thulium doped fiber master-oscillator-power-amplifier (MOPA) laser operating at wavelength of 2081 nm has been developed. The MOPA system employs a free-space structure with a single longitudinal mode operating Ho:YAG laser serving as the master oscillator, and a Tm-doped fiber is used for power amplifier. A single longitudinal mode laser with an output power of 7.81 W was extracted from the amplifier by injecting 173 mW of seed laser into the Tm-doped fiber. The beam quality factor was measured as M2 \textasciitilde{} 1.87. To our knowledge, this is the first study on the amplification of a 2 μm solid state single longitudinal mode laser in Tm-doped fibers.",

keywords = "Ho:YAG, master-oscillator-power-amplifier, single longitudinal mode, thulium doped fiber",

author = "Wei Liu and Youlun Ju and Tongyu Dai and Jinhe Yuan and Chao Liu and Qiang Liu",

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year = "2025",

month = jun,

doi = "10.1002/mop.70270",

language = "英语",

volume = "67",

journal = "Microwave and Optical Technology Letters",

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publisher = "John Wiley \& Sons Inc.",

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TY - JOUR

T1 - Single Longitudinal Mode 2081 nm Thulium Doped Fiber MOPA Laser With Free-Space Design

AU - Liu, Wei

AU - Ju, Youlun

AU - Dai, Tongyu

AU - Yuan, Jinhe

AU - Liu, Chao

AU - Liu, Qiang

PY - 2025/6

Y1 - 2025/6

N2 - A single longitudinal mode thulium doped fiber master-oscillator-power-amplifier (MOPA) laser operating at wavelength of 2081 nm has been developed. The MOPA system employs a free-space structure with a single longitudinal mode operating Ho:YAG laser serving as the master oscillator, and a Tm-doped fiber is used for power amplifier. A single longitudinal mode laser with an output power of 7.81 W was extracted from the amplifier by injecting 173 mW of seed laser into the Tm-doped fiber. The beam quality factor was measured as M2 ~ 1.87. To our knowledge, this is the first study on the amplification of a 2 μm solid state single longitudinal mode laser in Tm-doped fibers.

AB - A single longitudinal mode thulium doped fiber master-oscillator-power-amplifier (MOPA) laser operating at wavelength of 2081 nm has been developed. The MOPA system employs a free-space structure with a single longitudinal mode operating Ho:YAG laser serving as the master oscillator, and a Tm-doped fiber is used for power amplifier. A single longitudinal mode laser with an output power of 7.81 W was extracted from the amplifier by injecting 173 mW of seed laser into the Tm-doped fiber. The beam quality factor was measured as M2 ~ 1.87. To our knowledge, this is the first study on the amplification of a 2 μm solid state single longitudinal mode laser in Tm-doped fibers.

KW - Ho:YAG

KW - master-oscillator-power-amplifier

KW - single longitudinal mode

KW - thulium doped fiber

UR - https://www.scopus.com/pages/publications/105007105748

U2 - 10.1002/mop.70270

DO - 10.1002/mop.70270

M3 - 文章

AN - SCOPUS:105007105748

SN - 0895-2477

VL - 67

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

IS - 6

M1 - e70270

ER -

Single Longitudinal Mode 2081 nm Thulium Doped Fiber MOPA Laser With Free-Space Design

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