Patent ID: 6570905
Filing Date: 2003-05-27
Classification: B82Y,H01S

Abstract:
An oxide-confined vertical cavity surface emitting laser having reduced parasitic capacitance, comprising:a substrate; a first mirror stack grown epitaxially on the substrate, the first mirror stack including a plurality of semiconductor layers and being doped with a first doping type; an active region grown epitaxially above the first mirror stack for generating a lasing emission; a control layer grown epitaxially above the first mirror stack, between the first mirror stack and the active region or above the active region, and having a central non-oxidized conducting portion and an outer, laterally oxidized insulating portion; and a second mirror stack grown epitaxially above the control layer and the active region, the second mirror stack forming a mesa and including a second plurality of semiconductor layers doped with a second doping type, the second plurality of semiconductor layers including pairs of high index and low index material layers, the low index material layers being generally equally laterally oxidized and having a non-oxidized central portion, the penetration of the lateral oxidation of the low index material layers being less than oxidation penetration for the outer, laterally oxidized insulating portion of the control layer.