20 January 2005 Gain-switching of a LD end-pumped Nd:YVO4 microchip laser
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A study of the gain-switching process and output characteristics in a Nd:YVO4 microchip laser end-pumped by a fiber-coupled laser diode (LD) is reported here. The gain-switched laser pulses with controllable repetition-rate from 1Hz to 4kHz and pulse width of 16 ns are obtained. To analyze the gain-switching dynamics of the LD end-pumped Nd:YVO4 microchip laser, a theoretical model has been developed. The model is based on the rate equations of four-level systems and some practical physics conditions. Numerical simulations using the model illustrate the dependence of buildup time, pulse width and peak power of the gain-switched laser pulse on the pumping parameters. The experimental results coincide well with the theoretical analysis.
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Fang Sheng, Fang Sheng, Jun Chen, Jun Chen, Jianhong Ge, Jianhong Ge, } "Gain-switching of a LD end-pumped Nd:YVO4 microchip laser", Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.575543; https://doi.org/10.1117/12.575543


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