Quantum-Confined Mediums Scrutinized for Narrow Linewidth Lasing

On-chip laser diodes based on quantum dot (QD) and quantum well (QW) semiconductor materials are strong candidates for applications that rely on stable laser emissions with narrow linewidth. Examples include lidar, remote sensing, and coherent communications. For these applications, the light sources deliver high power efficiency, high temperature operation, and small form factors. The heterogeneous integration of III-V lasers with SiN microresonators, aided by self-injection locking, further offers compactness, high-volume production capabilities, and enhanced stability.