Journal
OPTICS EXPRESS
Volume 30, Issue 16, Pages 29833-29840Publisher
Optica Publishing Group
DOI: 10.1364/OE.468386
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Funding
- National Natural Science Foundation of China [61605032, 61705165, 61775167, 61975150]
- Natural Science Foundation of Tianjin City [18JCZDJC37900, 19JCZDJC38400]
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A 5 kHz sub-nanosecond master oscillator power amplifier (MOPA) laser system with high pulse energy and peak power was reported in this paper.
A 5 kHz sub-nanosecond master oscillator power amplifier (MOPA) laser system was reported in this paper. The master oscillator was an electro-optically Q-switched Nd:YVO4 laser directly pumped at 879 nm, yielding a pulse energy of 52 mu J and a pulse width of 900 ps at 5 kHz. With two Nd:YVO4 amplifiers directly pumped at 914 nm, the pulse energy was further scaled up. Under the absorbed pump energy of 11.0 mJ, the pulse energy was amplified to 4.2 mJ, corresponding to a peak power of 4.7 MW. The optical-to-optical efficiency of the amplifiers reached 33.5%. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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