Chinese Journal of Lasers, Volume. 34, Issue 12, 1629(2007)

Performance Improvement of Nd∶GdVO4Laser under 879 nm Direct Pumping

[in Chinese]*, [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
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    Thermal effect in the laser diode (LD) high-power pumped solid-state lasers will reduce the efficiency of output power, decrease the output beam quality, deteriorate the resonator stability and so on. The novel 879 nm LD instead of 808 nm LD was used to pump Nd∶GdVO4 crystal rod directly, driving Nd3+ ions into the laser emitting level, avoiding useless heat generation during no-radiation transition and reducing the thermal effects efficiently. In the same experimental conditions, the comparison on performances of Nd∶GdVO4 laser between under 808 nm LD pumping and under 879 nm LD pumping was demonstrated, and showed that the performances of the former were superior to that of the latter. In the 879 nm LD pumped Nd∶GdVO4 plane-plane cavity laser, the maximum TEM00 1063 nm output power of 9.8 W is obtained at an absorbed pump power of 16.3 W, an optical-optical efficiency of 60.1% and a slope efficiency of 68.4% are achieved.

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    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Performance Improvement of Nd∶GdVO4Laser under 879 nm Direct Pumping[J]. Chinese Journal of Lasers, 2007, 34(12): 1629

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    Paper Information

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    Received: Jun. 19, 2007

    Accepted: --

    Published Online: Dec. 15, 2007

    The Author Email: (kevin2025@163.com)

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