Opt Lett. 2023 Jul 1;48(13):3523-3526. doi: 10.1364/OL.494619.
We demonstrate for the first time that optical rogue waves (RWs) can be generated using a chaotic semiconductor laser with energy redistribution. Chaotic dynamics are numerically generated using the rate equation model of an optically injected laser. The chaotic emission is then sent to an energy redistribution module (ERM) that consists of a temporal phase modulation and a dispersive propagation. The process enables a temporal energy redistribution of the chaotic emission waveforms, where coherent summation of consecutive laser pulses leads to random generation of giant intensity pulses. Efficient generation of optical RWs are numerically demonstrated by varying the ERM operating parameters in the entire injection parameter space. The effects of the laser spontaneous emission noise on the generation of RWs are further investigated. The RW generation approach offers a relatively high flexibility and tolerance in the choice of ERM parameters according to the simulation results.
我们首次演示了利用具有能量再分配的混沌半导体激光器产生光学随机波（RWs）。混沌动力学是通过光注入激光器的速率方程模型数值产生的。然后，混沌发射被发送到能量再分配模块（ERM），该模块由时间相位调制和色散传播组成。该过程实现了混沌发射波形的时间能量再分配，其中连续激光脉冲的相干求和导致强度脉冲的随机产生。通过在整个注入参数空间中改变 ERM 工作参数，数值证明了光学 RW 的高效产生。进一步研究了激光自发发射噪声对 RW 产生的影响。根据模拟结果，RW 产生方法在 ERM 参数的选择上具有较高的灵活性和容忍度。
