Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Patent
1997-03-21
1998-12-29
Lee, John D.
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
372 10, 372 25, 372 75, H01S 30933
Patent
active
058548050
ABSTRACT:
A laser machining (including marking) method that employs a diode laser pumped solid state laser is controlled by a computer that contains a program for the interaction of the laser beam with a workpiece. The pumping of the laser is synchronised with the action of the beam in a series of active machining periods alternating with inactive non-machining periods. In order to avoid overheating of the active element, the duty cycle of these periods is maintained below a chosen value and no active period is allowed to exceed a selected percentage of the thermal time constant of the active element.
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Reid John
Walker David R.
Lee John D.
Lumonics Inc.
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