Chaos generation by a hybrid integrated chaotic semiconductor laser

Zhang Ming-Jiang^{1, 2, †}, Niu Ya-Nan^{1, 2}, Zhao Tong^{1, 2}, Zhang Jian-Zhong^{1, 2}, Liu Yi^{1, 2}, Xu Yu-Hang^{1, 2}, Meng Jie^{1, 2}, Wang Yun-Cai^{1, 2}, Wang An-Bang^{1, 2, ‡}

(color online) Calculated time series (I), optical spectra (II), and frequency spectra (III) of the chaotic semiconductor laser chip 1: (a) the steady state, (b) the one-period oscillation, (c) two-period oscillation, (d) chaotic state, . The bias current is and the short external cavity length is L = 4 mm.