Abstract
Monolithic integration of semiconductor lasers with side-injection lasers have demonstrated NOT, NOR and NAND functions by gain quenching mechanism.1-3 Of the various approaches, semiconductor lasers incorporated with intracavity saturable absorbers exhibit the greatest potentials because such devices can perform different functions, such as logic, memory and limiter, and can be optically controlled.4·5 In this paper, a semiconductor laser logic device which consists of a main laser and two monolithically integrated side-injection lasers, directing toward the saturable absorber and gain region of the main laser respectively, was processed and studied in detail. Controlling of the main laser light output by the operation of either side lasers, which corresponds to the amplification and inversion logic operation, was demonstrated.
© 1994 Optical Society of America
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