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Device for increasing repetition rate of pulses of solid state lasers, has quarter-wave plate for shifting pulses in one pulsed input laser radiation around time period with respect to pulses in other pulsed input laser radiations
Device for increasing repetition rate of pulses of solid state lasers, has quarter-wave plate for shifting pulses in one pulsed input laser radiation around time period with respect to pulses in other pulsed input laser radiations
The device has a polarizer (P) for overlapping optical paths of pulsed input laser radiations with different wavelengths and repetition rates, and a non-linear crystal (SHG) positioned such that non-linear interaction of the radiations is enabled. A quarter-wave plate (2) is arranged in the optical paths between the polarizer and the crystal and tilted around 45 degrees with respect to a direction determined by the polarizer. The quarter-wave plate shifts pulses in one of the radiations around a time period with respect to pulses in the other radiations. An independent claim is also included for a method for increasing repetition rate of laser pulses.
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