Patent ID: 6541731
Filing Date: 2003-04-01
Classification: B23K,H01S,H05K

Abstract:
A method of ablating a material, the method comprising the steps of:generating a first plurality of pulses from a first laser system, said first plurality of pulses having a first pulse repetition rate, a first average peak power per pulse, and a first average pulse duration, wherein said first laser system is further comprised of at least a first laser source; directing said first plurality of pulses to a beam splitter; generating a second plurality of pulses from a second laser system, said second plurality of pulses having a second pulse repetition rate, second average peak power per pulse, and a second average pulse duration, wherein said second laser system is further comprised of at least a second laser source; directing said second plurality of pulses to said beam splitter; combining at least a portion of said first plurality of pulses and at lest a portion of said second plurality of pulses with said beam splitter to form a combined output beam; directing said combined output beam with a beam delivery system to the material, wherein said combined output beam ablates a portion of the material; selecting said second pulse repetition rate substantially equivalent to said first pulse repetition rate; and selecting a delay period less than said first average pulse duration, wherein said second plurality of pulses are staggered from said first plurality of pulses by said selected delay period.