Abstract

Efficient sources of blue light based on the up-conversion of semiconductor laser diodes are presently sought for a variety of applications, including optical data storage, color displays, and undersea conununications. Frequency-doubling of GaAlAs laser diodes,1 strained-layer InGaAs laser diodes,2 and diode-pumped, solid- state lasers3,4 has been investigated for the generation of blue-green radiation.

© 1991 Optical Society of America

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