Power improvement of a Ho:YAG power amplifier and its application to a 150 W ZGP–OPO

Shuyi Mi; Disheng Wei; Baoquan Yao; Zuotao Lei; Junhui Li; Jinwen Tang; Tongyu Dai; Xiaoming Duan

doi:10.1007/s00340-023-08112-w

Power improvement of a Ho:YAG power amplifier and its application to a 150 W ZGP–OPO

Shuyi Mi
, Disheng Wei
, Baoquan Yao^*
, Zuotao Lei^*
, Junhui Li
, Jinwen Tang
, Tongyu Dai
, Xiaoming Duan

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
School of Chemistry and Chemical Engineering, Harbin Institute of Technology

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

9 Scopus citations

Abstract

We demonstrate a 2.09 μm Ho:YAG pulse power amplifier featuring high power, high efficiency, and low depolarization loss. By optimizing the gain medium structure, the maximum average output power of Ho:YAG amplifier was increased from 432 to 446 W with a seed power of 250 W. Wherein, the linearly polarized power was improved from 397 to 420 W, along with a decrease in depolarization loss from 0.082 to 0.058. At the maximum output power, the beam quality M ² factor was better than two times diffraction limited. The pulsewidth was ~ 50 ns at the pulse frequency repetition of 40 kHz. Furthermore, using the Ho:YAG laser as a pump source for a ZnGeP₂ signal singly resonant optical parametric oscillator, the maximum output power was scaled to 151 W at the wavelength of 3.86 and 4.55 μm.

Original language	English
Article number	166
Journal	Applied Physics B: Lasers and Optics
Volume	129
Issue number	11
DOIs	https://doi.org/10.1007/s00340-023-08112-w
State	Published - Nov 2023

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title = "Power improvement of a Ho:YAG power amplifier and its application to a 150 W ZGP–OPO",

abstract = "We demonstrate a 2.09 μm Ho:YAG pulse power amplifier featuring high power, high efficiency, and low depolarization loss. By optimizing the gain medium structure, the maximum average output power of Ho:YAG amplifier was increased from 432 to 446 W with a seed power of 250 W. Wherein, the linearly polarized power was improved from 397 to 420 W, along with a decrease in depolarization loss from 0.082 to 0.058. At the maximum output power, the beam quality M 2 factor was better than two times diffraction limited. The pulsewidth was \textasciitilde{} 50 ns at the pulse frequency repetition of 40 kHz. Furthermore, using the Ho:YAG laser as a pump source for a ZnGeP2 signal singly resonant optical parametric oscillator, the maximum output power was scaled to 151 W at the wavelength of 3.86 and 4.55 μm.",

author = "Shuyi Mi and Disheng Wei and Baoquan Yao and Zuotao Lei and Junhui Li and Jinwen Tang and Tongyu Dai and Xiaoming Duan",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.",

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doi = "10.1007/s00340-023-08112-w",

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T1 - Power improvement of a Ho:YAG power amplifier and its application to a 150 W ZGP–OPO

AU - Mi, Shuyi

AU - Wei, Disheng

AU - Yao, Baoquan

AU - Lei, Zuotao

AU - Li, Junhui

AU - Tang, Jinwen

AU - Dai, Tongyu

AU - Duan, Xiaoming

PY - 2023/11

Y1 - 2023/11

N2 - We demonstrate a 2.09 μm Ho:YAG pulse power amplifier featuring high power, high efficiency, and low depolarization loss. By optimizing the gain medium structure, the maximum average output power of Ho:YAG amplifier was increased from 432 to 446 W with a seed power of 250 W. Wherein, the linearly polarized power was improved from 397 to 420 W, along with a decrease in depolarization loss from 0.082 to 0.058. At the maximum output power, the beam quality M 2 factor was better than two times diffraction limited. The pulsewidth was ~ 50 ns at the pulse frequency repetition of 40 kHz. Furthermore, using the Ho:YAG laser as a pump source for a ZnGeP2 signal singly resonant optical parametric oscillator, the maximum output power was scaled to 151 W at the wavelength of 3.86 and 4.55 μm.

AB - We demonstrate a 2.09 μm Ho:YAG pulse power amplifier featuring high power, high efficiency, and low depolarization loss. By optimizing the gain medium structure, the maximum average output power of Ho:YAG amplifier was increased from 432 to 446 W with a seed power of 250 W. Wherein, the linearly polarized power was improved from 397 to 420 W, along with a decrease in depolarization loss from 0.082 to 0.058. At the maximum output power, the beam quality M 2 factor was better than two times diffraction limited. The pulsewidth was ~ 50 ns at the pulse frequency repetition of 40 kHz. Furthermore, using the Ho:YAG laser as a pump source for a ZnGeP2 signal singly resonant optical parametric oscillator, the maximum output power was scaled to 151 W at the wavelength of 3.86 and 4.55 μm.

UR - https://www.scopus.com/pages/publications/85173602887

U2 - 10.1007/s00340-023-08112-w

DO - 10.1007/s00340-023-08112-w

M3 - 文章

AN - SCOPUS:85173602887

SN - 0946-2171

VL - 129

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 11

M1 - 166

ER -

Power improvement of a Ho:YAG power amplifier and its application to a 150 W ZGP–OPO

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