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提出外部光注入空间耦合半导体激光器系统,研究外部光注入两激光器混沌振荡频率增强以及混沌控制等特点,给出稳定频率失谐公式.研究表明,当单激光器注入时,注入激光器呈现出三个混沌扩频区域;发现在强激光注入条件下,随着注入程度的增加,注入激光器混沌振荡频率增强非常有效且可达到3.5倍以上(尽管另一个激光器频率会缓慢下降);随着注入光正频率失谐的增加,两激光器混沌振荡都能进一步增强;发现混沌控制窗口,即在弱注入条件下两激光器可以被控制到单周期、双周期、四周期、六周期等.当双激光器注入时,随着注入程度的增加,两激光器混沌振荡频率进一步增加,且可达到3.5倍和2.65倍以上;随着注入光正频率失谐增加,两激光器混沌振荡频率增加.双激光器注入控制混沌的一个窗口也被发现:即在强注入条件下两激光器可以被控制到单周期、三周期、六周期等.最后详细给出了单激光注入系统从单周期模式锁定到类周期再进入混沌增频的发展路径以及双激光注入系统从混沌到类周期再进入单周期模式锁定的演化控制路径等.
The external light injection into the space-coupled semiconductor laser system is studied, the chaotic oscillation frequency enhancement and chaos control of the external light injection laser are studied, and the steady-state frequency detuning formula is given.The results show that when the single laser is injected, the injected laser presents three chaos It is found that under the condition of strong laser injection, the chaotic oscillation frequency of the injected laser can be enhanced more than 3.5 times with the increase of the injection degree (although the laser frequency of the other laser will slowly decrease) The chaotic oscillation of the two lasers can be further enhanced. The window of chaos control is found, that is, the two lasers can be controlled to single, double, quadruple and six-period under the weak injection condition, The chaotic oscillation frequency of the two lasers further increases by 3.5 times and 2.65 times with the increase of the injection degree. The chaos oscillation frequency of the two lasers increases with the increase of the misalignment of the positive frequency of the injected laser. It is found that both lasers can be controlled to single cycle and three weeks under strong injection conditions , Six cycles, etc. Finally, the development path of single laser injection system from single-cycle mode locking to quasi-periodic reentry chaos frequency increase and the evolutionary control path of double laser injection system from chaos to quasi-periodic reentry into single-cycle mode locking Wait.