Three methods which can control the chaos in an injection multi-quantum-well (MQW) laser via adjusting or modulating the injection light are presented. Firstly, when a frequency modulator is used to modulate the frequency of the injection light, the chaotic laser can be suppressed in a stable state, a period-one state, a period-doubling state and quasi-periodic states, respectively, where controlled ranges are found in which the laser can emit a stable light wave or regular pulses. Secondly, if the phase of the injection light is modulated by a phase modulator, the chaotic laser can be stabilized in a period-3 state, a period-4 state and other quasi-periodic states, respectively. Lastly, when the injection light is adjusted by an intensity controller, the laser can be conducted to show all kinds of dynamic behaviors.
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Yan Sen Lin (2009) studied this question.
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