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:
Mar. 21, 2000
Filed:
Sep. 08, 1998
Alcatel, Paris, FR;
Abstract
To form an integrated optical component comprising a thick waveguide coupled to a thin waveguide, the method consists in: depositing a first guiding layer of said thick waveguide on a substrate; locally etching said first guiding layer over a portion allocated both to a coupling interface and to the thin waveguide; depositing a second guiding layer on the first guiding layer and on the locally etched portion so as to form said thick waveguide in a manner such that it has a maximum thickness in a first zone, a graded-thickness section in a second zone, and a reduced-thickness section in a third zone; locally etching the second guiding layer over a portion of the third zone, said portion being allocated to the thin waveguide; and depositing a third guiding layer in said portion of said third zone so as to form said thin waveguide.