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:
Sep. 25, 2001
Filed:
Nov. 12, 1999
David A. G. Deacon, Los Altos, CA (US);
Sparkolor Corporation, Santa Clara, CA (US);
Abstract
A tapered waveguide couples optical waveguides of different sizes in a multi-chip optical assembly. In a particular embodiment, a resonator containing a semiconductor diode amplifier is coupled to a planar waveguide structure that optically couples to an optical fiber. A single-mode semiconductor laser waveguide is flip-chip bonded to a substrate and couples to a silica waveguide structure that couples to a single-mode tantala waveguide. In a further embodiment, high-index material is provided in a gap between chips. In another embodiment, polymer material is used in the waveguide structure to modify thermal characteristics of the waveguide structure.