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Intensity pulsations of continuously operating GaAs injection lasers have been directly observed for the first time, with fast sampling techniques. The width of the self-induced pulses has been measured to be approximately 390 psec at a repetition rate of 620 MHz. In addition, this pulsewidth has been reduced to less than 200 psec by locking the pulsations with an external modulation of the injection current.
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Paoli et al. (1969) studied this question.
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