title: Modal analysis of separate-confinement heterojunction lasers with inhomogeneous cladding layers.
abstract: Separate-confinement heterostructure lasers with thin active regions are analyzed. For four different interiorcladding-region refractive-index spatial variations, i.e., step, triangular, parabolic, and inverted parabolic, waveguidemodes are calculated and thresholds are compared. Based on optical considerations alone, the step-indexprofile has the lowest threshold; however, for optimum cladding thicknesses the differences are not great.
authors.forename: W
authors.initials: W
authors.lastname: Streifer
authors.forename: R D
authors.initials: RD
authors.lastname: Burnham
authors.forename: D R
authors.initials: DR
authors.lastname: Scifres