Laser islands: Researcher shows how to fully integrate VCSELs on silicon

https://phys.org/news/2022-12-laser-islands-fully-vcsels-silicon.html

"VCSELs directly on silicon microelectronics using epitaxial transfer... more compact, perform better, and are less prone to overheating... attaching unprocessed VCSEL device structures to temporary platform etching distinct islands of material for individual lasers, bonding material was placed on top... turned over and placed on main silicon platform, causing islands to stick. After removing temporary platform, what remained was array of epitaxially transferred islands ready to be processed into VCSEL devices"

Related: New research sheds light on enhanced performance of thin-film VCSELs on composite metal substrate

https://techxplore.com/news/2023-11-thin-film-vcsels-composite-metal-substrate.html