Pulse temporal programmable ultrafast burst mode laser for micromachining
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United States of America Patent
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Nov 13, 2012
Grant Date -
Jul 15, 2010
app pub date -
Jan 15, 2009
filing date -
Jan 15, 2009
priority date (Note) -
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Abstract
A laser processing system provides a burst of ultrafast laser pulses having a selectively shaped burst envelope. A burst pulse laser includes a high repetition rate ultrafast laser to deliver a pulse train with each pulse in the train having an independently controlled amplitude. The respective amplitudes of each ultrafast pulse in a group define a “burst envelope.” In addition to independently controlling the amplitude of each ultrafast pulse within the burst envelope, the system may also provide selective control of spacing between each ultrafast pulse and/or the overall temporal width of the burst envelope. Thus, the system provides selective shaping of the burst envelope for particular laser processing applications.
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