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. 03, 2005
Filed:
Oct. 11, 2002
Tom Haslett, Toronto, CA;
Wei LI, Waterloo, CA;
Seyed Mostafa Sadeghi, Toronto, CA;
Ali M. Shams-zadeh-amiri, North York, CA;
Tom Haslett, Toronto, CA;
Wei Li, Waterloo, CA;
Seyed Mostafa Sadeghi, Toronto, CA;
Ali M. Shams-Zadeh-Amiri, North York, CA;
Photonami, Inc., , CA;
Abstract
An electro-optical interface with a package base having an electrical connection configuration suitable for connecting to a source of electrical signals. A semiconductor optical signal source is provided mounted to the base and having a second or higher order grating in the cavity. The signal source is operatively connected to the package base whereby the electronic signals may be converted into optical signals. A waveguide is positioned adjacent to the signal source to couple the optical signal to the waveguide. The cavity is sized, shaped and positioned so that a radiation field for the cavity is not a mode discrimination mechanism wherein any back reflections into the cavity will affect a coupling coefficient to the radiation field without significantly adversely affecting the output signal quality.