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:
Jul. 31, 2007
Filed:
Dec. 05, 2002
Hui Luo, Markham, CA;
Mindaugas F. Dautartas, Blacksburg, VA (US);
Dan A. Steinberg, Blacksburg, VA (US);
David W. Sherrer, Blacksburg, VA (US);
Hui Luo, Markham, CA;
Mindaugas F. Dautartas, Blacksburg, VA (US);
Dan A. Steinberg, Blacksburg, VA (US);
David W. Sherrer, Blacksburg, VA (US);
Shipley Company, L.L.C., Marlborough, MA (US);
Abstract
An optical device is disclosed which includes a single-mode waveguide () which supports a first optical mode in a first region and a second optical mode in a second region. The waveguide includes a guiding layer () having at least one wing () extended outwardly from the guiding layer (). The guiding layer (703) may desirably have a rib waveguide () cross sectional shape at the wings. The wings () decrease in width along the length of the guiding layer to convert a rib waveguide mode at the wings to a channel waveguide mode.