In this presentation, I will first talk about development of MOCVD-grown TJ contacts on LED test structures. Effects of doping concentration and surface treatments will be discussed based on electrical characteristics and secondary ion mass spectrometry (SIMS) data. Then, VCSELs with MOCVD-grown TJ contacts will be demonstrated under pulsed and continuous-wave (CW) operation. I will mainly discuss about cavity resonance
design to compensate wavelength shift caused by heating under CW operation.