Abstract
The high power pulsed Nd:YAG laser is very useful for material processing and other applications. Different applications need different laser pulses with different pulse widths and rise times. A high power pulsed Nd:YAG laser were successfully designed , it includes three big YAG rods (ϕ10 × 150mm), six Krypton lambs and six power supplies with different pulse width and rise times .Here we use Krypton lamb instead of Xenon lamb because it has better spectrum match feature , high conversion efficiency and suited to long pulse operation. The power supplies have resonant and switched types(VDMOS and IGBT). Cooling system has internal and external circular systems. Whole system has a laser light fiber delivery device which can be transmitted high energy. Table shows the light shapes of Krypton lamp and shapes of laser pulses. The pulsewidth can be tuning from 0.3 to 6 ms, the rise time can be tuning from 0.2 to 0.8ms.
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