Numerical Study of Optical Injection Dynamics of Vertical-Cavity Surface-Emitting Lasers

Abstract

Abstract-We study numerically the transverse-mode dynamics of a vertical-cavity surface-emitting laser with external optical injection. We consider the case in which two transverse modes with parallel polarizations are exited. Varying the strength and frequency of the injected field, we find a rich variety of complex behaviors. We show that by increasing the optical injection strength the laser does not turn into a single-mode laser, as would be expected if the transverse modes have perpendicular polarizations.

Analysis of nonlinear dynamics and spin-flip parameters on elliptically polarized injection-locked VCSELs

“…In addition regions of nearly degenerate four-wave mixing, limit cycle, period doubling and chaotic behavior have been reported [12][13][14] and it has been shown that optical injection can stabilize the polarization of a VCSEL operating in regimes of pulsation [13] or mode hopping [14]. A number of theoretical accounts of polarized optical injection in VCSELs has appeared, including models that take account of electron spin as described by the SFM approach [15][16][17] and treatments that focus on spatial overlap of the optical fields and the carrier distributions [18][19].…”

Improvement of modulation performance and bandwidth of a 980 nm strained In0.2Ga0.8As/GaAs QW VCSEL

“…Following [6,10,11] the rate of change of slowly varying complex amplitude e i for the ith transverse mode of a VCSEL can be written as…”

Experimental Study of Transverse Mode Selection in VCSELs Induced by Parallel Polarized Optical Injection

“…Modal selection in multitransverse mode VCSELs has been obtained when using orthogonal [27] and parallel optical injection [25][26]. Theoretical analyses of that problem have also been performed for the cases of orthogonal [27] and parallel optical injection [37][38][39][40].…”

“…The selection process under parallel optical injection depends on the polarization of the transverse modes of the solitary VCSEL. Selection of the fundamental transverse mode has been reported when both modes are orthogonally polarized [25][26], [37][38][39][40]. However different experimental results have been obtained when the free-running VCSEL has two parallelpolarized modes.…”