Q-switched, cavity dumped laser systems for material processing

Coherent light generators – Particular beam control device – Q-switch

Reexamination Certificate

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C372S012000

Reexamination Certificate

active

07058093

ABSTRACT:
This disclosure discusses techniques for obtaining wavelength selected simultaneously super pulsed Q-switched and cavity dumped laser pulses utilizing high optical damage threshold electro-optic modulators, maintaining a zero DC voltage bias on the CdTe electro-optic modulator (EOM) so as to minimize polarization variations depending on the location of the laser beam propagating through the CdSe EOM crystal, as well as the addition of one or more laser amplifiers in a compact package and the use of simultaneous gain switched, Q-switched and cavity dumped operation of CO2lasers for generating shorter pulses and higher peak power for the hole drilling, engraving and perforation applications.

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