Spatiotemporal evolution of continuous-wave field and dark soliton formation in a microcavity with normal dispersion

Hu Xiaohong^{1, 2, 3}, Zhang Wei¹, Liu Yuanshan¹, Feng Ye¹, Zhang Wenfu¹, Wang Leiran¹, Wang Yishan^{1, 3, †}, Zhao Wei^{1, 3}

(color online) Dark soliton forms from the nonlinear evolution of an initial steady-state CW field with white Gaussian noise. The left column shows the initial (black) and ultimate (red) formed field profiles. The right column gives the corresponding spectral profiles. An analytical fitting of the numerically obtained field intensity profile based on Eq. (3) is exhibited as the blue circles in (a). The cavity and pump parameters adopted during the calculation process are: α = 2.5, β = 0.0125, F = 1.61, ρ = 1.209.