“…By simply adjusting the operating conditions of the two lasers, including bias current, coupling strength, and detuning frequency, various dynamical behaviors can be induced, such as mutual injection locking, period-one (P1) dynamics, period-two (P2) dynamics, quasi-periodic dynamics, and chaos. The unique temporal and spectral features found in these dynamical behaviors have been proposed, respectively, to improve performance characteristics of existing technologies, such as enhancing the bandwidth of direct modulation [1][2][3][4][5] and suppressing nonlinear distortion due to direct modulation [6][7][8], or to provide alternatives for novel applications, such as tunable microwave generation [9][10][11][12], chaotic synchronization [13][14][15][16], reservoir computing [17][18][19], and decision making [20]. For these technological applications, the bias currents of the two lasers are, in general, adjusted independently and differently so that specific characteristics or functionalities are achieved.…”