Comparison of mid-infrared ZnGeP2 rectangle ring optical parametric oscillators of three types of resonant regimes

Yi Chen; Gaoyou Liu; Baoquan Yao; Ruixue Wang; Chao Yang; Xiaoming Duan; Tongyu Dai; Yuezhu Wang

doi:10.1364/AO.58.004163

Comparison of mid-infrared ZnGeP₂ rectangle ring optical parametric oscillators of three types of resonant regimes

Yi Chen
, Gaoyou Liu
, Baoquan Yao^*
, Ruixue Wang
, Chao Yang
, Xiaoming Duan
, Tongyu Dai
, Yuezhu Wang

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

7 Scopus citations

Abstract

We experimentally demonstrated doubly resonant oscillator (DRO), signal singly resonant oscillator (SSRO), and idler singly resonant oscillator (ISRO) ZnGeP₂ (ZGP) optical parametric oscillators (OPOs), respectively, pumped by a 1 kHz Q-switched Ho:YAG laser. At the full incident pump energy, the ISRO got the highest output pulse energy of 8.38 mJ and the best beam quality factors M² _x of 2.3 for idler (4.6 μm) and 2.7 for signal (3.8 μm) but got the highest threshold of 3.97 MW∕cm². The DRO had the lowest threshold of 3.12 MW∕cm² but had the lowest output energy of 8.29 mJ and the worst M² _x of 3.9 for idler and 4.1 for signal. The output laser characteristics of the SSRO were slightly worse than those of the ISRO. The experimental results show that the ISRO is the most suitable resonant regime for high brightness mid-infrared ZGP planar ring OPOs pumped by 2 μm nanosecond lasers.

Original language	English
Pages (from-to)	4163-4169
Number of pages	7
Journal	Applied Optics
Volume	58
Issue number	15
DOIs	https://doi.org/10.1364/AO.58.004163
State	Published - 20 May 2019

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title = "Comparison of mid-infrared ZnGeP2 rectangle ring optical parametric oscillators of three types of resonant regimes",

abstract = "We experimentally demonstrated doubly resonant oscillator (DRO), signal singly resonant oscillator (SSRO), and idler singly resonant oscillator (ISRO) ZnGeP2 (ZGP) optical parametric oscillators (OPOs), respectively, pumped by a 1 kHz Q-switched Ho:YAG laser. At the full incident pump energy, the ISRO got the highest output pulse energy of 8.38 mJ and the best beam quality factors M2 x of 2.3 for idler (4.6 μm) and 2.7 for signal (3.8 μm) but got the highest threshold of 3.97 MW∕cm2. The DRO had the lowest threshold of 3.12 MW∕cm2 but had the lowest output energy of 8.29 mJ and the worst M2 x of 3.9 for idler and 4.1 for signal. The output laser characteristics of the SSRO were slightly worse than those of the ISRO. The experimental results show that the ISRO is the most suitable resonant regime for high brightness mid-infrared ZGP planar ring OPOs pumped by 2 μm nanosecond lasers.",

author = "Yi Chen and Gaoyou Liu and Baoquan Yao and Ruixue Wang and Chao Yang and Xiaoming Duan and Tongyu Dai and Yuezhu Wang",

note = "Publisher Copyright: {\textcopyright} 2019 Optical Society of America.",

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month = may,

day = "20",

doi = "10.1364/AO.58.004163",

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TY - JOUR

T1 - Comparison of mid-infrared ZnGeP2 rectangle ring optical parametric oscillators of three types of resonant regimes

AU - Chen, Yi

AU - Liu, Gaoyou

AU - Yao, Baoquan

AU - Wang, Ruixue

AU - Yang, Chao

AU - Duan, Xiaoming

AU - Dai, Tongyu

AU - Wang, Yuezhu

PY - 2019/5/20

Y1 - 2019/5/20

N2 - We experimentally demonstrated doubly resonant oscillator (DRO), signal singly resonant oscillator (SSRO), and idler singly resonant oscillator (ISRO) ZnGeP2 (ZGP) optical parametric oscillators (OPOs), respectively, pumped by a 1 kHz Q-switched Ho:YAG laser. At the full incident pump energy, the ISRO got the highest output pulse energy of 8.38 mJ and the best beam quality factors M2 x of 2.3 for idler (4.6 μm) and 2.7 for signal (3.8 μm) but got the highest threshold of 3.97 MW∕cm2. The DRO had the lowest threshold of 3.12 MW∕cm2 but had the lowest output energy of 8.29 mJ and the worst M2 x of 3.9 for idler and 4.1 for signal. The output laser characteristics of the SSRO were slightly worse than those of the ISRO. The experimental results show that the ISRO is the most suitable resonant regime for high brightness mid-infrared ZGP planar ring OPOs pumped by 2 μm nanosecond lasers.

AB - We experimentally demonstrated doubly resonant oscillator (DRO), signal singly resonant oscillator (SSRO), and idler singly resonant oscillator (ISRO) ZnGeP2 (ZGP) optical parametric oscillators (OPOs), respectively, pumped by a 1 kHz Q-switched Ho:YAG laser. At the full incident pump energy, the ISRO got the highest output pulse energy of 8.38 mJ and the best beam quality factors M2 x of 2.3 for idler (4.6 μm) and 2.7 for signal (3.8 μm) but got the highest threshold of 3.97 MW∕cm2. The DRO had the lowest threshold of 3.12 MW∕cm2 but had the lowest output energy of 8.29 mJ and the worst M2 x of 3.9 for idler and 4.1 for signal. The output laser characteristics of the SSRO were slightly worse than those of the ISRO. The experimental results show that the ISRO is the most suitable resonant regime for high brightness mid-infrared ZGP planar ring OPOs pumped by 2 μm nanosecond lasers.

UR - https://www.scopus.com/pages/publications/85066451250

U2 - 10.1364/AO.58.004163

DO - 10.1364/AO.58.004163

M3 - 文章

C2 - 31158174

AN - SCOPUS:85066451250

SN - 1559-128X

VL - 58

SP - 4163

EP - 4169

JO - Applied Optics

JF - Applied Optics

IS - 15

ER -

Comparison of mid-infrared ZnGeP₂ rectangle ring optical parametric oscillators of three types of resonant regimes

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