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Induced-absorption optical bistability has been studied in GaAlAs heterostructure rib and slab waveguides. Both whole-sample and localized switching have been observed within the same device. The localized switch, which occurs on the time scale of a few microseconds and at an input power of 10–20 mW, has been induced using a laser-diode source.
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Aitchison et al. (1987) studied this question.
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