Spin-VCSELs with Local Optical Anisotropies: Toward Terahertz Polarization Modulation

Putting a different spin on photonics: Spin-injected vertical-cavity surface-emitting lasers (Spin-VCSELs) with strong anisotropies are important in particular for ultrafast and terahertz applications, but the field is being held back part because of lack sufficiently predictive physical models. This study uses temporal coupled-mode theory transfer-matrix formalism to make progress by extending spin-flip model. Additionally, authors propose spin-VCSEL an anisotropic intracavity grating. approach points engineering solutions optical communication compact sources.