High-Power, High-Beam-Quality, Long-Pulse-Width 532 nm Laser Based on a 4f Optical System

In response to the demand for high-power, long-pulse-width 532 nm lasers in the medical and industrial processing fields, this paper explains how the laser cavity of a high-power Nd:YAG 532 nm laser can be extended while maintaining the laser’s q-parameter by using a 4f optical system. The results s...

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Published in:Applied sciences 2024-11, Vol.14 (21), p.9620
Main Authors: Hu, Jiapeng, Li, Wenbo, Li, Dong, Liu, Hongcai, Xia, Nanhui, Zhang, Tianyu, Liu, Xuesheng, Liu, Youqiang, Wang, Zhiyong
Format: Article
Language:English
Subjects:
4f optical system
acousto-optic Q-switched
Crystals
Energy
Fourier transforms
intracavity frequency doubling
Lasers
Light
long pulse width
Nd:YAG
Optics
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container_title Applied sciences
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Li, Wenbo
Li, Dong
Liu, Hongcai
Xia, Nanhui
Zhang, Tianyu
Liu, Xuesheng
Liu, Youqiang
Wang, Zhiyong
description In response to the demand for high-power, long-pulse-width 532 nm lasers in the medical and industrial processing fields, this paper explains how the laser cavity of a high-power Nd:YAG 532 nm laser can be extended while maintaining the laser’s q-parameter by using a 4f optical system. The results show that at a repetition rate of 10 kHz, the extended cavity achieved a maximum average power of 112 W. Compared with the short cavity, the power was not significantly reduced. The pulse width was extended from 56 ns to 85 ns, and its broadening ratio reached 46.5%. The laser maintained good beam quality during high-power operation.
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subjects 4f optical system
acousto-optic Q-switched
Crystals
Energy
Fourier transforms
intracavity frequency doubling
Lasers
Light
long pulse width
Nd:YAG
Optics
title High-Power, High-Beam-Quality, Long-Pulse-Width 532 nm Laser Based on a 4f Optical System
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