STUDY OF THE WAVEFRONT AND ASTIGMATISM OF PLANAR STRIPE-GEOMETRY HETEROSTRUCTURE LASERS IN THE X = 780-900 nm RANGE

M. A. Man'ko, B. I. Makhsudov, Pham Van Hoi

Abstract:
For planar stripe-geometry GaAlAs/GaAs heterostructure lasers, astigmatism, wavefronts and directivity diagrams of radiation are studied and their dependence on pumping current is investigated by means of a modified Michelson interferometer. Experimental data are compared with those calculated using a model with smooth variation of the complex dielectric permeability in the form of an Epstein layer.

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