Locking of spontaneously pulsing CW GaAs injection lasers by fractional-harmonic current modulation

The effect of injection modulation on CW GaAs junction lasers undergoing coupled mode pulsations at microwave rates is studied. Two types of behavior are observed depending on the values of the power and frequency of the modulating signal: either fractional-harmonic locking to the modulating signal or pulse repetition rate modulation.