Coherent, Inc.

Mark M Gitin

R Russel Austin

David Schleuning

Luis A Spinelli

A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be 'on' while others are 'off'. A switching arrangement is described for selectively turning bars on or off, responsive to a signal representative of the temperature of the diode-laser bar stack, for providing a desired total emission spectrum.

Optical pumping of a solid-state gain-medium using a diode-laser bar stack with individually addressable bars

A method of printing labels includes supporting a laser sensitive material on a disc and printing label images on the disc with a modulated focused beam from a diode-laser. The label images may be printed in regions of the medium having pre-cut label boundaries. Alternatively, label boundaries may be cut through the medium using the focused laser beam. The labels are peeled from the disc after printing.

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Mountain View, CA, United States of America

Mark M Gitin