Optical coupler
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsGilles Le Blevennec, Marianne Consonni
Life of this patent
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Abstract
An optical coupler including a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively including, between the first and second surfaces, a first concave portion and a first convex portion.
Claims29
A method of manufacturing an optical coupler comprising a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively comprising, between the first and second surfaces, a first concave portion and a first convex portion, the method comprising the steps of:
- a) determining, for a first profile of the lateral wall, the position along the axis of the first profile of the point at which a light beam escapes from the coupler through the lateral wall;
- and
- b) determining a second profile by modifying the first profile by drawing away the lateral wall from the axis at said position with respect to the first profile.
An optical coupler comprising a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively comprising, between the first and second surfaces, a first concave portion and a first convex portion;
- the optical coupler being manufactured by a method comprising the steps of:
- a) determining, for a first profile of the lateral wall, the position along the axis of the first profile of the point at which a light beam escapes from the coupler through the lateral wall;
- and
- b) determining a second profile by modifying the first profile by drawing away the lateral wall from the axis at said position with respect to the first profile;
- the optical coupler further comprising, between the first and second surfaces, a second concave portion, the first convex portion being interposed between the first concave portion and the second concave portion;
- the optical coupler further comprising, between the first and second surfaces, a second convex portion, the second concave portion being interposed between the first convex portion and the second convex portion;
- the optical coupler further comprising, between the first and second surfaces, a third concave portion, the second convex portion being interposed between the second and third concave portions.
An optoelectronic device comprising an optical coupler comprising a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively comprising, between the first and second surfaces, a first concave portion and a first convex portion,
- the optical coupler being manufactured by a method comprising the steps of:
- a) determining, for a first profile of the lateral wall, the position along the axis of the first profile of the point at which a light beam escapes from the coupler through the lateral wall;
- and
- b) determining a second profile by modifying the first profile by drawing away the lateral wall from the axis at said position with respect to the first profile,
- the optoelectronic device further comprising a waveguide in contact with the second surface, wherein the waveguide comprises a bundle of optical fibers.
Dependencies are inferred from the claim text.