500-kHz Level High Energy Double-Pass Nd:YVO4 Picosecond Amplifier with Optic–Optic Efficiency of 51%

Xuesheng Liu; Huan He; Yiheng Song; Congcong Wang; Zhiyong Wang

doi:10.3390/app9020219

Applied Sciences (Jan 2019)

500-kHz Level High Energy Double-Pass Nd:YVO4 Picosecond Amplifier with Optic–Optic Efficiency of 51%

Xuesheng Liu,
Huan He,
Yiheng Song,
Congcong Wang,
Zhiyong Wang

Affiliations

Xuesheng Liu: Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
Huan He: Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
Yiheng Song: Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
Congcong Wang: Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
Zhiyong Wang: Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

DOI: https://doi.org/10.3390/app9020219
Journal volume & issue: Vol. 9, no. 2
p. 219

Abstract

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We have demonstrated a high pulse energy and high optic–optic efficiency double-pass picosecond (ps) master oscillator power amplifier system of 1064 nm at a pulse repetition rate of 500 kHz. A 500 kHz, 7.68 μJ picosecond laser is used as the seed laser. Through one stage double-pass traveling-wave amplifier, a maximum output power of 16.19 W at a pump power of 31.7 W is generated with the optic–optic efficiency of 51.07%. The output pulse duration is 17.6 ps, corresponding to the pulse energy of 32.38 μJ. The beam quality factor M 2 were measured to be 1.28 and 1.17 along the x, y axis direction, respectively.

Published in Applied Sciences

ISSN: 2076-3417 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General); Science: Biology (General); Science: Physics; Science: Chemistry
Website: http://www.mdpi.com/journal/applsci

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