Journal article
Coherent coupling of multiple transverse modes in a quantum cascade laser
N Yu, L Diehl, E Cubukcu, D Bour, S Corzine, J Zhu, G Höfler, A Wojcik, KB Crozier, A Belyanin, F Capasso
Optics Infobase Conference Papers | AMER PHYSICAL SOC | Published : 2008
Abstract
We investigate phase coherence of multi-transverse modes in quantum cascade lasers through both near- and far-field mode measurements. We explain the observed phase locking by four-wave mixing of longitudinal modes belonging to different transverse modes. © 2008 Optical Society of America.