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  • Title: A 108 W, 500 kHz Q-switching Nd:YVO4 laser with the MOPA configuration.
    Author: Yan X, Liu Q, Fu X, Wang Y, Huang L, Wang D, Gong M.
    Journal: Opt Express; 2008 Mar 03; 16(5):3356-61. PubMed ID: 18542426.
    Abstract:
    A high power, dual-end-pumped Nd:YVO(4) laser with a MOPA configuration was stably Q-switched at repetition rate up to 500 kHz. The thermally bonded Nd:YVO(4) crystal was used in our experiment. In acousto-optically Q-switching operation at repetition rate of 500 kHz, 35 W average power was produced by the oscillator, with optical-optical efficiency of 41.7%. 108 W average power was obtained by a master oscillator power amplifier (MOPA) configuration including two amplifier stages, corresponding to the total optical-optical efficiency of 42.2%. The pulse duration was 48 ns, with a stability of pulse peak value < 2.5%. The beam quality was better than two-times diffraction-limit (M(x)(2) = 1.99, M(y)(2) = 1.76).
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