Heterogeneous laser with high efficiency and method for manufacturing the laser
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsBadhise Ben Bakir, Nicolas Olivier, Jean-Marc Fedeli
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Abstract
The laser includes an amplifier with III-V heterostructure, designed to generate an optical wave, and a waveguide coupled optically to the amplifier, said waveguide having a hat-shaped cross section, the top of which is proximal to the amplifier. The top of the hat and the lateral sides of the hat are covered with a layer of a dielectric material in the vicinity of the amplifier. The hat is formed by a base and a protrusion of the waveguide, the material forming the base being distinct from the material forming the protrusion.
Claims15
1-11. (canceled)
A laser comprising:
- a III-V heterostructure amplifier designed to generate photons,
- a waveguide optically coupled to the III-V heterostructure amplifier, the waveguide comprising:
- a base element made from a first material,
- a protrusion element made from a second material different from the first material, formed on the base element to define in the base element covered and uncovered areas with the protrusion element,
- a dielectric material layer covering a top face and side walls of the protrusion element, the dielectric material layer separating the III-V heterostructure amplifier and the protrusion element.
A laser comprising:
- a III-V heterostructure amplifier, designed to generate photons,
- a waveguide, optically coupled to the III-V heterostructure amplifier, and comprising a hat-shaped cross-section the top of which is proximal to the III-V heterostructure amplifier, the top of the hat and the lateral sides of the hat being covered with a dielectric material layer in the vicinity of the III-V heterostructure amplifier,
- wherein the waveguide comprises a base element provided with a protrusion element, the material forming the base element being different from the material forming the protrusion element.
Dependencies are inferred from the claim text.