Chinese Journal of Quantum Electronics, Volume. 22, Issue 4, 538(2005)

LD-pumped eye-safe Nd:YAG laser at 1.44μm

[in Chinese]1...2,*, [in Chinese]1, [in Chinese]1,2 and [in Chinese]1 |Show fewer author(s)
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    A laser in eye-safe spectrum region at 1.44μm was demonstrated by using LDpumped Nd:YAG. The 4F3/2→4I13/2 transition of Nd:YAG was realized by reasonable coating on the mirrors of the resonator. The CW and pulse operation switched by a new type of saturable absorber V:YAG were realized, respectively. When the incident pump power was 1.5 W, CW linear polarization output power of 268 mW was obtained with Brewster plate acting as polarizer in the cavity. The threshold was 380 mW and the slope-efficiency was 23.9%. Beam quality factor M2 was less than 1.3. When V:YAG was inserted into the resonator instead of the Brewster plate with 0?incident angle, linear polarization laser was also demonstrated. The results of average power of 36 mW, pulse duration of 106 ns and pulse repetition rate of 52 kHz were obtained. The corresponding peak power and single pulse energy was 6.5 W and 0.69 μJ, respectively.

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    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. LD-pumped eye-safe Nd:YAG laser at 1.44μm[J]. Chinese Journal of Quantum Electronics, 2005, 22(4): 538

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    Paper Information

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    Received: Sep. 16, 2004

    Accepted: --

    Published Online: May. 15, 2006

    The Author Email: (xueqinghua1978@sina.com)

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