The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2009
Filed:
May. 24, 2006
Nicolas Grossard, Besançon, FR;
Jérôme Hauden, Besançon, FR;
Henri Porte, Serre les Sapins, FR;
Photline Technologies, Besancon, FR;
Abstract
An optical integrated circuit with waveguide separation on a substrate includes at least one separating unit, including an optical input/output interface in relation with an external light wave guide, the interface extending in the circuit through an optical guiding input section extended by at least two optical guiding branches mutually spaced apart substantially symmetrically relative to the general direction of the input section. The input section includes as many optical guides as branches, adjacent input section optical guides being substantially rectilinear and mutually parallel, two adjacent optical guides of the input section being separated by an aperture of width D, the refractive index of the opening being lower than that of the optical guides, each input section optical guide having a determined width We, each branch optical guide exhibiting a width increasing in the direction away from the input section from the width Weup to a determined width Ws.