Patent ID: 6846685
Filing Date: 2005-01-25
Classification: H01S

Abstract:
1. A process for fabricating a vertical-cavity surface-emitting semiconductor laser comprising: a substrate; a first lower DBR mirror having a plurality of p-Al a semiconductor buried structure provided over said first lower DBR mirror and having an optical resonator region with a GaAs/Al a first upper DBR mirror having a plurality of n-Al wherein said optical resonator region includes said active layer sandwiched between a pair of Al a first growth step of growing on said substrate said first lower DBR mirror to said optical resonator region or a part of said first upper DBR mirror; a step of etching to a lower portion of said optical resonator region to form a mesa structure; a second growth step of forming said current confinement layer; and a third growth step of regrowing said first upper DBR mirror on said semiconductor buried structure; and wherein composition of a mixed crystal is controlled so that each of said layers and said second upper and lower DBR mirrors constituting said optical resonator region have effective refractive indices higher than respective effective refractive indices of the current confinement layer.