Mercier Émeric, Wolfersberger Delphine, Sciamanna Marc
Opt Lett. 2014 Jul 1;39(13):4021-4. doi: 10.1364/OL.39.004021.
We unveil theoretically the bifurcations to chaotic low-frequency fluctuations (LFF) in a laser diode with phase-conjugate feedback (PCF). LFF occur from a chaotic itinerancy among destabilized limit-cycle attractors that correspond to the external-cavity modes (ECMs) of the PCF laser system and with a directional motion toward a self-pulsating dynamics of increasing frequency and larger output power. When increasing the feedback strength, the frequency of the fast-pulsing dynamics changes about a multiple of the external-cavity frequency, which is a unique feature of LFF in a laser diode with PCF.
我们从理论上揭示了具有相位共轭反馈（PCF）的激光二极管中向混沌低频波动（LFF）的分岔现象。LFF源于不稳定极限环吸引子之间的混沌游走，这些吸引子对应于PCF激光系统的外腔模式（ECM），并且具有朝着频率增加和输出功率更大的自脉冲动力学的定向运动。当增加反馈强度时，快速脉冲动力学的频率以约外腔频率的倍数变化，这是具有PCF的激光二极管中LFF的一个独特特征。
