1.5-/spl mu/m AlGaInAs quantum well lasers grown by the digital alloy technique

Summary form only given.1.5-/spl mu/m lasers are of particular interest since this wavelength enjoys the dual role of being optimum for fiber optics and the lowest that is considered eye-safe. Our investigations are focussed on digital alloy (DA) MBE grown lattice matched and strained AlGaInAs multiquantum well lasers. The DA method reduces many growth complexities associated with quaternary materials. The AlGaInAs alloys produce a better conduction band offset than InGaAsP on InP.