条形DH半导体激光器高频调制光输出的频率锁定、准周期、分岔和混沌

FREQUENCY LOCKING, QUASIPERIODICITY, SUBHARMONIC BIFURCATIONS AND CHAOS IN HIGH FREQUENCY MODULATED STRIPE GEOMETRY DH SEMICONDUCTOR LASERS

本文从解光场方程和载流子浓度以及光子密度速率方程的自洽解出发,研究条形DH半导体激光器高频调制下光输出的频率锁定、准周期、分岔和混沌现象。结果表明,不稳定的条形半导体激光器可能出现混沌的光输出;其通向混沌的途径是准周期到混沌。所得结果与实验符合得很好,并澄清了当前理论中的混乱之处。

The method of obtaining self-consistent solutions of the field equation and the rate equations of photon density and carrier concentration has been used to study frequency locking, quasiperiodicity, subharmonic bifurcations and chaos in high frequency modulated stripe geometry DH semiconductor lasers. The results show that the chaotic behavior arises in self-pulsing stripe geometry semiconductor lasers. The route to chaos is not period-double, but quasiperiodicity to chaos. All of the results agree with the experiments. Some obscure points in previous theory about chaos have been cleared up.