This talk introduces the content disclosed in SID2021, the latest results of Sony’s GaN-based VCSELs. High efficiency blue VCSELs, the world first green and blue-green VCSELs and it’s reduction of threshold current<1mA and related applications. In the background part, we touch on our development of green EELs to totally review the history of wavelength extension of GaN-based laers.
