Abstract
Self-induced intensity pulsations of continously operating GaAs junction lasers have been frequency-stabilized and narrowed by regenerative feedback of oscillations in the injection current. The spectral width of the pulse rate has been reduced by a factor of 20 to less than 30 kHz while the optical pulse width was reduced by at least a factor of 2 to less than 180 psec. These results suggest that a well-stabilized source of short optical pulses can be constructed from GaAs injection lasers without external microwave circuitry.
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