Single transverse mode operation in double heterostructure junct

Oscillators – Molecular or particle resonant type

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357 18, H01S 319

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041288157

ABSTRACT:
In single transverse mode semiconductor lasers, a semiconductor laser which comprises an optical confinement semiconductor layer having a refractive index of n.sub.3, an active layer of an optical waveguide having a refractive index of n.sub.1 and formed on said semiconductor layer, a buffer layer having a refractive index of n.sub.2 and formed on said active layer, a mode controlling striped semiconductor layer having a refractive index of n.sub.6 and formed on said buffer layer and opposing contacts, and is controllable in the transverse mode in the relations of

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