Characteristics of an oxide-confined GaAs/AlGaAs vertical cavity surface emitting laser (VCSEL) emitting at 842 nm - Estacio, Elmer; Manasan, Gabriel; Somintac, Armando; Podpod, Arnita; Samson, Alfred; Agra, Francisco; Salvador, Arnel (Proceedings of the 21st Samahang Pisika ng Pilipinas Physics Congress, 2003)