Abstract

Recent progresses in research on bistable laser diodes and their applications in optical communications and photonic switching are reviewed. In addition to the conventional absorptive and dispersive bistable laser diodes, bistability in two-mode lasers via gain saturation has recently attracted attention, because of its ultra high speed. On the other hand, bistable laser diodes with saturable absorbers are mainly used in the system applications because of their stable operations at present. This paper presents the theoretical analysis of the two-mode bistable laser diodes, the stripe lasers and the vertical-cavity surface-emitting lasers (VCSELs) as the two major representatives of bistable lasers, and the profound discussion of their possible applications.

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