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Simulation studies of frequency locking, quasi-periodicity, subharmonic bifurcation, and chaos in modulated semiconductor lasers

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1 Author(s)
Yi Guang Zhao ; Dept. of Phys., Peking Univ., China

A method of finding self-consistent solutions for the field equation and rate equations has been used to study frequency locking, quasi-periodicity, subharmonic bifurcations, and chaos in gain-guided stripe-geometry semiconductor lasers under high-frequency modulation current. The results show that chaotic behavior arises in unstable semiconductor lasers. The route to chaos is not through period doubling, but rather through quasi-periodicity. The frequency-locked regions have been studied. For lasers whose dynamic response exhibits quickly damped relaxation oscillations, only period-two oscillations have been obtained. The calculated results agree with experiment

Published in:

Quantum Electronics, IEEE Journal of  (Volume:28 ,  Issue: 10 )