Anisotropic Transverse Confinement Design for Electrically Pumped 850 nm VCSELs Tuned by an Intra Cavity Liquid-Crystal Cell

Relying on preliminary experiments, in this work we design a tunable 850 nm laser based hybrid combination of liquid crystal micro-cell with nanoimprinted grating and an electrically-pumped GaAs half-VCSEL. The optical is challenging due to the inherent tolerances technology, presence metals cavity need for single fundamental extraordinary mode emission over whole tuning range. To ensure proper operation, introduce first time new concept anisotropic transverse confinement design. overall performance verified by our multiphysics VCSEL suite. Beyond features, predict side suppression ratio power under all working conditions, comparing crystals different clearing temperatures. results qualifies these lasers as viable sources interesting complementary features compared other technologies.