Is single-mode lasing possible in an infinite periodic system?
Author(s)Benzaouia, Mohammed; Cerjan, Alexander; Johnson, Steven G
MetadataShow full item record
In this Letter, we present a rigorous method to study the stability of periodic lasing systems. In a linear model, the presence of a continuum of modes (with arbitrarily close lasing thresholds) gives the impression that stable single-mode lasing cannot be maintained in the limit of an infinite system. However, we show that nonlinear effects of the Maxwell–Bloch equations can lead to stable systems near threshold given a simple stability condition on the sign of the laser detuning compared to the band curvature. We examine band edge (1D) and bound-in-continuum (2D) lasing modes and validate our stability results against time-domain simulations.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Department of Mathematics
Applied Physics Letters
Benzaouia, Mohammed et al. "Is single-mode lasing possible in an infinite periodic system?." Applied Physics Letters 117, 5 (August 2020): 051102
Author's final manuscript