Work

Is single-mode lasing possible in an infinite periodic system?

Year: 2020

Type: article

Abstract: 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.

Source: Applied Physics Letters

DOI: 10.1063/5.0019353

Authors: Mohammed Benzaouia, Alexander Cerjan, Steven G. Johnson

Institutions: Massachusetts Institute of Technology, Pennsylvania State University

Language: English

Topic: Photonic Crystals and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: U.S. Army

Award: G8368414854