France Telecom

France Telecom Etablissement Autonome De Droit Public

Nouredine Bouadma

Louis Menigaux

A laser component having a Bragg reflector, the component comprising a substrate carrying firstly an active emission section of semiconductor materials and secondly a Bragg reflector waveguide extending said active section, means enabling the refractive index of the waveguide to be varied so as to control the wavelength tuning of said laser component, wherein said waveguide is made of organic material(s).

Laser component having a bragg reflector of organic material, and a

The present invention relates to a surface-emitting power laser, this laser comprises, on a semiconducting substrate, a plurality of elementary semiconductor stripe lasers, and means for reflecting along a direction perpendicular to the substrate, light generated by each of the elementary lasers.

Surface-emitting power laser and process for fabricating this laser

A process is disclosed for producing a buried stripe semiconductor laser using dry etching. According to the present invention, a heterostructure is formed by a first epitaxy, during which, on a substrate is deposited a confinement layer having a first doping type, an active layer and a protection layer. The protection layer and the active layer are etched by a reactive ion beam etching method using a gaseous mixture of argon, methane and hydrogen and this takes place down to the confinement layer, so as to form a stripe from the active layer. The stripe is buried by a second epitaxy in a semiconductor layer having a second type of doping which is the opposite of the first. Particular utility is found in the area of optical telecommunications, although other utilities are contemplated.

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Gentilly, France

Nouredine Bouadma