Karsaklian Dal Bosco Andreas, Kanno Kazutaka, Uchida Atsushi, Sciamanna Marc, Harayama Takahisa, Yoshimura Kazuyuki
Department of Information and Computer Sciences, Saitama University, 255 Shimo-Okubo Sakura-ku, Saitama City, Saitama 338-8570, Japan.
Department of Electronics Engineering and Computer Science, Fukuoka University, 8-19-1 Nanakuma, Johnan-ku, Fukuoka 814-0180, Japan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Dec;92(6):062905. doi: 10.1103/PhysRevE.92.062905. Epub 2015 Dec 7.
We report experimentally on the bifurcation cascade leading to the appearance of self-pulsation in a photonic integrated circuit in which a laser diode is subjected to delayed optical feedback. We study the evolution of the self-pulsing frequency with the increase of both the feedback strength and the injection current. Experimental observations show good qualitative accordance with numerical results carried out with the Lang-Kobayashi rate equation model. We explain the mechanism underlying the self-pulsations by a phenomenon of beating between successive pairs of external cavity modes and antimodes.
我们通过实验报告了在一个激光二极管受到延迟光反馈的光子集成电路中导致自脉冲出现的分岔级联。我们研究了自脉冲频率随反馈强度和注入电流增加的演变。实验观测结果与用朗-小林速率方程模型进行的数值结果在定性上有很好的一致性。我们通过连续的外腔模式和反模式对之间的拍频现象来解释自脉冲背后的机制。
