161 W middle infrared ZnGeP2 MOPA system pumped by 300 W-class Ho:YAG MOPA system

Gaoyou Liu; Shuyi Mi; Ke Yang; Disheng Wei; Junhui Li; Baoquan Yao; Chao Yang; Tongyu Dai; Xiaoming Duan; Lixin Tian; Youlun Ju

doi:10.1364/OL.413755

161 W middle infrared ZnGeP₂ MOPA system pumped by 300 W-class Ho:YAG MOPA system

Gaoyou Liu
, Shuyi Mi
, Ke Yang
, Disheng Wei
, Junhui Li
, Baoquan Yao^*
, Chao Yang
, Tongyu Dai
, Xiaoming Duan
, Lixin Tian
, Youlun Ju

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

96 Scopus citations

Abstract

We demonstrated a high-power Q-switched two-stage Ho:YAG master-oscillator power-amplifier (MOPA) system dual-end pumped by Tm:YLF lasers. A new method was introduced by rotating and swapping spatial axial directions of pump beams to improve the beam quality of the Ho:YAG oscillator and first-stage amplifier. Two parallel second-stage Ho:YAG amplifiers were employed to output high power. A total maximum average output power of 332 W at 2091 nm with pulse repetition frequency of 20 kHz was achieved. Then a ZnGeP₂ MOPA system was demonstrated using the Ho:YAG MOPA as the pump source. A maximum average output power of 161 W at 3–5 µm was obtained with 290 W incident Ho pump power, corresponding to beam quality factors M² of 3.42 and 3.83 for horizontal and vertical directions, respectively.

Original language	English
Pages (from-to)	82-85
Number of pages	4
Journal	Optics Letters
Volume	46
Issue number	1
DOIs	https://doi.org/10.1364/OL.413755
State	Published - 1 Jan 2021

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@article{9027134d9dbc4819bb3b069251daafdc,

title = "161 W middle infrared ZnGeP2 MOPA system pumped by 300 W-class Ho:YAG MOPA system",

abstract = "We demonstrated a high-power Q-switched two-stage Ho:YAG master-oscillator power-amplifier (MOPA) system dual-end pumped by Tm:YLF lasers. A new method was introduced by rotating and swapping spatial axial directions of pump beams to improve the beam quality of the Ho:YAG oscillator and first-stage amplifier. Two parallel second-stage Ho:YAG amplifiers were employed to output high power. A total maximum average output power of 332 W at 2091 nm with pulse repetition frequency of 20 kHz was achieved. Then a ZnGeP2 MOPA system was demonstrated using the Ho:YAG MOPA as the pump source. A maximum average output power of 161 W at 3–5 µm was obtained with 290 W incident Ho pump power, corresponding to beam quality factors M2 of 3.42 and 3.83 for horizontal and vertical directions, respectively.",

author = "Gaoyou Liu and Shuyi Mi and Ke Yang and Disheng Wei and Junhui Li and Baoquan Yao and Chao Yang and Tongyu Dai and Xiaoming Duan and Lixin Tian and Youlun Ju",

note = "Publisher Copyright: {\textcopyright} 2020 Optical Society of America",

year = "2021",

month = jan,

day = "1",

doi = "10.1364/OL.413755",

language = "英语",

volume = "46",

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TY - JOUR

T1 - 161 W middle infrared ZnGeP2 MOPA system pumped by 300 W-class Ho:YAG MOPA system

AU - Liu, Gaoyou

AU - Mi, Shuyi

AU - Yang, Ke

AU - Wei, Disheng

AU - Li, Junhui

AU - Yao, Baoquan

AU - Yang, Chao

AU - Dai, Tongyu

AU - Duan, Xiaoming

AU - Tian, Lixin

AU - Ju, Youlun

PY - 2021/1/1

Y1 - 2021/1/1

N2 - We demonstrated a high-power Q-switched two-stage Ho:YAG master-oscillator power-amplifier (MOPA) system dual-end pumped by Tm:YLF lasers. A new method was introduced by rotating and swapping spatial axial directions of pump beams to improve the beam quality of the Ho:YAG oscillator and first-stage amplifier. Two parallel second-stage Ho:YAG amplifiers were employed to output high power. A total maximum average output power of 332 W at 2091 nm with pulse repetition frequency of 20 kHz was achieved. Then a ZnGeP2 MOPA system was demonstrated using the Ho:YAG MOPA as the pump source. A maximum average output power of 161 W at 3–5 µm was obtained with 290 W incident Ho pump power, corresponding to beam quality factors M2 of 3.42 and 3.83 for horizontal and vertical directions, respectively.

AB - We demonstrated a high-power Q-switched two-stage Ho:YAG master-oscillator power-amplifier (MOPA) system dual-end pumped by Tm:YLF lasers. A new method was introduced by rotating and swapping spatial axial directions of pump beams to improve the beam quality of the Ho:YAG oscillator and first-stage amplifier. Two parallel second-stage Ho:YAG amplifiers were employed to output high power. A total maximum average output power of 332 W at 2091 nm with pulse repetition frequency of 20 kHz was achieved. Then a ZnGeP2 MOPA system was demonstrated using the Ho:YAG MOPA as the pump source. A maximum average output power of 161 W at 3–5 µm was obtained with 290 W incident Ho pump power, corresponding to beam quality factors M2 of 3.42 and 3.83 for horizontal and vertical directions, respectively.

UR - https://www.scopus.com/pages/publications/85099078571

U2 - 10.1364/OL.413755

DO - 10.1364/OL.413755

M3 - 文章

C2 - 33362022

AN - SCOPUS:85099078571

SN - 0146-9592

VL - 46

SP - 82

EP - 85

JO - Optics Letters

JF - Optics Letters

IS - 1

ER -

161 W middle infrared ZnGeP₂ MOPA system pumped by 300 W-class Ho:YAG MOPA system

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