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:
Jul. 10, 2007
Filed:
Nov. 21, 2002
Anne Juliette Talneau, Palaiseau, FR;
Philippe Lalanne, Palaiseau, FR;
Anne Juliette Talneau, Palaiseau, FR;
Philippe Lalanne, Palaiseau, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
A photonic crystal guided propagation structure. The structure includes a guide portion Wn, n being a positive real number or zero number, having a first configuration of rows of patterns, and a guide portion Wm, m being a real number, m>n, having a second configuration of rows of patterns, and a transition zone of distance D located between guide portion Wn and guide portion Wm, in which patterns aligned with at least one row of patterns in the first configuration decrease in size over distance D to allow progressive passing from the first configuration of rows of patterns to the second configuration of rows of patterns. The structures can be applied to the area of integrated optics (semiconductor lasers, laser modulators, filters, multiplexors, etc.).