Array of waveguides making it possible to deflect a light beam
AssigneesCentre National de la Recherche Scientifique (CNRS), Groupe des Ecoles des Telecommunications (GET)
InventorsJean-Marie Moison, Christophe Minot
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Abstract
The invention relates to an array of waveguides (1) comprising a set of coupled waveguides that are substantially parallel and oriented in a guidance direction (Y), the set of waveguides comprising a first zone (2) formed by waveguides coupled according to a first coupling coefficient, and a second zone (3) formed by waveguides coupled according to a second coupling coefficient that is different from the first coupling coefficient, characterized in that the second coupling coefficient is different from the first coupling coefficient in the guidance direction and in the direction (X) perpendicular to the guidance direction.
Claims10
An array of waveguides comprising a set of coupled waveguides having a longitudinal axis that are substantially parallel and oriented in a guidance direction, the set of waveguides comprising:
- a first zone in which the coupled waveguides are coupled according to a first coupling coefficient that is constant over the first zone;
- a second zone in which the coupled waveguides are coupled according to a second coupling coefficient that is constant over the second zone and that is different from the first coupling coefficient;
- and
- a transitional region located between the first zone and the second zone, wherein a transition between the first coupling coefficient and the second coupling coefficient of the coupled waveguides occurs in both the guidance direction and a direction perpendicular to the guidance direction only within the transitional region.
A method of propagating light in a comprising:
- deflecting a light beam in a set of coupled waveguides that are substantially parallel and oriented in a guidance direction, wherein the set of waveguides include:
- a first zone in which the coupled waveguides are coupled according to a first coupling coefficient that is constant over the first zone;
- a second zone in which the coupled waveguides are coupled according to a second coupling coefficient that is constant over the second zone and that is different from the first coupling coefficient;
- and
- a transitional region located between the first zone and the second zone, wherein a transition between the first coupling coefficient and the second coupling coefficient of the coupled waveguides occurs in both the guidance direction and a direction perpendicular to the guidance direction only within the transitional region.
Dependencies are inferred from the claim text.