VCSELs market diversifies for success

This update of an earlier feature looks over business and technical developments from the past year. Only a few years ago there were three times as many companies making VCSELs. Some industry observers think that the dozen or so around today is still too many. Indeed, consolidation continues and the sector has lost at least one or two names in the past year. Nevertheless, the VCSEL market is thriving thanks to investment and innovation.