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:
May. 07, 2002
Filed:
Feb. 22, 2001
Nicolas Bouche, Chaville, FR;
Stéphane Lovisa, Paris, FR;
Alcatel, Paris, FR;
Abstract
The present invention concerns an optical component having at least one guide with a ridge structure obtained by chemical etching on a substrate made of semiconductor material, the ridge having a base and a top face, the guide having an outline with at least one curved section, the tangent at any point on the outline defining the local orientation (&bgr;) of the guide. According to the invention, the width of the base (weff) of the ridge is substantially constant all along the guide and the width of the top face (w) of the ridge varies according to the local orientation (&bgr;) of the guide with respect to the reference crystallographic direction (R) of the substrate.