Visible and ultraviolet vertical external cavity surface emitting semiconductor lasers

Vertical External Cavity Surface Emitting Lasers (VECSELs) are an amalgamation of solid state laser and semiconductor laser technologies. They combine the high power and excellent beam quality associated with solid state laser design with the compactness and wavelength flexibility of semiconductor lasers. This thesis will report on the first red VECSEL which was used to demonstrate a novel VECSEL array and the first UV VECSEL using an AlGahiP gain region.EThOS - Electronic Theses Online ServiceGBUnited Kingdo