Non-equilibrium dynamics in the dual-wavelength operation of Vertical external-cavity surface-emitting lasers
Abstract
Microscopic many-body theory coupled to Maxwell's equation is used to investigate dual-wavelength operation in vertical external-cavity surface-emitting lasers. The intrinsically dynamic nature of coexisting emission wavelengths in semiconductor lasers is associated with characteristic non-equilibrium carrier dynamics which causes significant deformations of the quasi-equilibrium gain and carrier inversion. Extended numerical simulations are employed to efficiently investigate the parameter space to identify the regime for two-wavelength operation. Using a frequency selective intracavity etalon, two families of modes are stabilized with dynamical interchange of the strongest emission peaks. For this operation mode, anti-correlated intensity noise is observed in agreement with the experiment. A method using effective frequency selective filtering is suggested for stabilization genuine dual-wavelength output.
Keywords
Cite
@article{arxiv.1810.09989,
title = {Non-equilibrium dynamics in the dual-wavelength operation of Vertical external-cavity surface-emitting lasers},
author = {I. Kilen and J. Hader and S. W. Koch and J. V. Moloney},
journal= {arXiv preprint arXiv:1810.09989},
year = {2019}
}
Comments
15 pages, 7 figures