Researchers simulate novel metal-filtered VCSEL modal control

A study led by researchers from the Changchun Institute of Optics, Fine Mechanics and Physics of the Chinese Academy of Sciences revealed a novel metal-dielectric film mode filter structure that can flexibly regulate transverse modes in vertical-cavity surface-emitting lasers (VCSELs), which demonstrates the potential of metal apertures in enhancing mode control within VCSELs. The study was published in Sensors.