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Applied Sciences
Volume 9
Issue 23
10.3390/app9235247
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Open AccessArticle

A High Peak Power and High Beam Quality Sub-Nanosecond Nd:YVO4 Laser System at 1 kHz Repetition Rate without SRS Process

by
Yutao Huang
1,2,3,
Hongbo Zhang
1,2,3,
Xiaochao Yan
1,2,
Zhijun Kang
1,2,
Fuqiang Lian
1,2 and
Zhongwei Fan
1,2,3,*
1
Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China
2
National Engineering Research Center for DPSSL, Beijing 100094, China
3
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(23), 5247; https://doi.org/10.3390/app9235247
Received: 6 November 2019 / Revised: 23 November 2019 / Accepted: 27 November 2019 / Published: 2 December 2019
(This article belongs to the Special Issue Modern Applications in Optics and Photonics: From Sensing and Analytics to Communication)
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Abstract

We present a compact sub-nanosecond diode-end-pumped Nd:YVO4 laser system running at 1 kHz. A maximum output energy of 65.4 mJ without significant stimulated Raman scattering (SRS) process was obtained with a pulse duration of 600 ps, corresponding to a pulse peak power of 109 MW. Laser pulses from this system had good beam quality, where M2 < 1.6, and the excellent signal to noise ratio was more than 42 dB. By frequency doubling with an LBO crystal, 532 nm green light with an average power of 40.5 W and a power stability of 0.28% was achieved. The diode-end-pumped pump power limitation on a high peak power amplifier caused by the SRS process and thermal fracture in bulk Nd:YVO4 crystal is also analyzed. View Full-Text
Keywords: sub-nanosecond laser; high peak power; Nd:YVO4; stimulated Raman scattering (SRS); thermal fracture sub-nanosecond laser; high peak power; Nd:YVO4; stimulated Raman scattering (SRS); thermal fracture
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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MDPI and ACS Style

Huang, Y.; Zhang, H.; Yan, X.; Kang, Z.; Lian, F.; Fan, Z. A High Peak Power and High Beam Quality Sub-Nanosecond Nd:YVO4 Laser System at 1 kHz Repetition Rate without SRS Process. Appl. Sci. 2019, 9, 5247. https://doi.org/10.3390/app9235247

AMA Style

Huang Y, Zhang H, Yan X, Kang Z, Lian F, Fan Z. A High Peak Power and High Beam Quality Sub-Nanosecond Nd:YVO4 Laser System at 1 kHz Repetition Rate without SRS Process. Applied Sciences. 2019; 9(23):5247. https://doi.org/10.3390/app9235247

Chicago/Turabian Style

Huang, Yutao; Zhang, Hongbo; Yan, Xiaochao; Kang, Zhijun; Lian, Fuqiang; Fan, Zhongwei. 2019. "A High Peak Power and High Beam Quality Sub-Nanosecond Nd:YVO4 Laser System at 1 kHz Repetition Rate without SRS Process" Appl. Sci. 9, no. 23: 5247. https://doi.org/10.3390/app9235247

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