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Laser protection materials based on linear effect are only sensitive to optical wavelength, which are protection materials against optical wavelength, while laser protection materials based on nonlinear principle and phase transition effect are the protection materials against optical intensity, which can overcome the defects of linear protection materials, and are expected to realize multi-wavelength...
Because the emitting wavelength of the laser diode (LD) pump source is matched with the absorption spectrum of the laser medium, high power diode-pumped lasers greatly reduce the useless heat into the laser medium, and alleviate the impact of thermal effect. However, with development of the output power of lasers toward a MW power level, thermal effect of the laser medium seriously impacts the improvement...
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