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:
Dec. 21, 1999
Filed:
Jul. 10, 1997
Giovanni Barbarossa, New Providence, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
The specification describes techniques for fabricating tapered waveguides in planar photonic integrated circuits with the tapers formed in the z-direction (thickness). The tapers are formed by depositing the core layer in two operations. After depositing the first core layer, the layer is masked, and a step is formed in the first layer. When the second core layer is deposited over the step, a smooth taper results. The core layers are preferably formed by flame hydrolysis. During consolidation the two core layers coalesce into a single homogeneous layer with a smooth taper in the thickness dimension of the waveguide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile