Dynamics and instabilities of Lasing Light Bullets in Passively Mode-Locked Semiconductor Lasers

Abstract

Recently, the existence of robust three-dimensional light bullets (LBs) was predicted theoretically in the output of a laser coupled to a distant saturable absorber. In this manuscript, we analyze the stability and the range of existence of these dissipative localized structures and provide guidelines and realistic parameter sets for their experimental observation. In order to reduce the complexity of the analysis, we first approximate the three-dimensional problem by a reduced equation governing the dynamics of the transverse profile. This effective theory provides an intuitive picture of the LB formation mechanism. Moreover, it allows us to perform a detailed multi-parameter bifurcation study and to identify the different mechanisms of instability. It is found that the LBs experience dominantly either homogeneous oscillation or symmetry breaking transversal waves radiation. In addition, our analysis reveals several non-intuitive scaling behaviors as functions of the linewidth enhancement factors and the saturation parameters. Our results are confirmed by direct numerical simulations of the full system.

arXiv comment12 pages, 13 figures, submitted to Physical Review A

References in corpus (4)

• Cavity Soliton Laser based on mutually coupled semiconductor microresonators
• Dissipative Light Bullets in Passively Mode-Locked Semiconductor Lasers
• Cavity Light Bullets: 3D Localized Structures in a Nonlinear Optical Resonator
• Dynamics of Localized Structures in Systems with Broken Parity Symmetry

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