Tunable Vertical Cavity Surface Emitting Lasers for 1550 nm

Development of Vertical Cavity Surface Emitting Lasers for 1550nm communication applications has been hindered by the lack of high quality Bragg mirrors. Efforts for growing high quality InGaAsP/InP, SbGaAsAI/InGaAsP as well as wafer-bonding with GaAs/AIOx mirrors are on-going but significant breakthroughs in material quality and yield are needed before devices are produced. In addressing this challenge proposes a novel method for fabricating for 1550 involving post deposition of broad band, low loss mirrors using Ion-Beam Sputtering and flip-chip bonding process. Furthermore our Hybrid approach allows development of integrated microelectromechanical structures to allow 100 tuning of the lasing . In Phase I we will demonstrate the feasibility of fabricating fixed with optical pumping as well as the structures needed for tuning. In Phase we will develop fully functional tunable at 1550.