High beam quality and high energy short-pulse laser with MOPA

Quanwei Jin; Yu Pang; JianFeng Jiang; Liang Tan; Lingling Cui; Bin Wei; Yinhong Sun; Chun Tang

doi:10.1117/12.2316797

5 March 2018 High beam quality and high energy short-pulse laser with MOPA

Quanwei Jin, Yu Pang, JianFeng Jiang, Liang Tan, Lingling Cui, Bin Wei, Yinhong Sun, Chun Tang

Author Affiliations +

Proceedings Volume 10710, Young Scientists Forum 2017; 107103B (2018) https://doi.org/10.1117/12.2316797
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

A high energy, high beam quality short-pulse diode-pumped Nd:YAG master oscillator power-amplifier (MOPA) laser with two amplifier stages is demonstrated. The two-rod birefringence compensation was used as beam quality controlling methods, which presents a short-pulse energy of 40 mJ with a beam quality value of M² = 1.2 at a repetition rate of 400Hz. The MOPA system delivers a short-pulse energy of 712.5 mJ with a pulse width of 12.4 ns.The method of spherical aberration compensation is improved the beam quality, a M² factor of 2.3 and an optical-to-optical efficiency of 27.7% is obtained at the maximum laser out power.The laser obtained 1.4J out energy with polarization integration.

Citation Download Citation

Quanwei Jin, Yu Pang, JianFeng Jiang, Liang Tan, Lingling Cui, Bin Wei, Yinhong Sun, and Chun Tang "High beam quality and high energy short-pulse laser with MOPA", Proc. SPIE 10710, Young Scientists Forum 2017, 107103B (5 March 2018); https://doi.org/10.1117/12.2316797

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