5.4 W, 9.4 ns Pulse Width, Long-Wave Infrared ZGP OPO Pumped by Ho:YAG MOPA System

5.4 W, 9.4 ns Pulse Width, Long-Wave Infrared ZGP OPO Pumped by Ho:YAG MOPA System

We demonstrated a narrow pulse-width long-wave infrared ZnGeP<sub>2</sub> (ZGP) optical parametric oscillator (OPO) pumped by a 2.1 &#x03BC;m Ho:YAG master oscillator power-amplifier (MOPA). By short-cavity structure, a minimum pulse width of &#x223C;12 ns was achieved at 1kHz, 2...

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Bibliographic Details
Main Authors: Chuan-Peng Qian, Ting Yu, Jing Liu, Yu-Yao Jiang, Si-Jie Wang, Xiang-Chun Shi, Xi-Sheng Ye, Wei-Biao Chen
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Photonics Journal
Subjects:
Ho:YAG MOPA
long-wave infrared
ZGP OPO
solid state lasers
Online Access:https://ieeexplore.ieee.org/document/9424997/
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Summary:We demonstrated a narrow pulse-width long-wave infrared ZnGeP<sub>2</sub> (ZGP) optical parametric oscillator (OPO) pumped by a 2.1 &#x03BC;m Ho:YAG master oscillator power-amplifier (MOPA). By short-cavity structure, a minimum pulse width of &#x223C;12 ns was achieved at 1kHz, 2kHz and 3kHz in Ho:YAG oscillator. By employing a three-stage amplifier, a maximum average output power of 73.1 W with pulse width of &#x223C;17 ns at the pulse repetition frequency of 3 kHz was obtained. Then a ZGP OPO pumped by the Ho:YAG MOPA was demonstrated. The maximum average output powers of 5.48 W at 8.2 &#x03BC;m and 22.4 W at 2.8 &#x03BC;m were obtained, corresponding to the pulse width of &lt;10 ns.
ISSN:1943-0655

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