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:
Oct. 29, 2013
Filed:
Dec. 02, 2009
Robin K. Huang, N. Billerica, MA (US);
Reuel P. Swint, Billerica, MA (US);
Joseph P. Donnelly, Carlisle, MA (US);
Robin K. Huang, N. Billerica, MA (US);
Reuel P. Swint, Billerica, MA (US);
Joseph P. Donnelly, Carlisle, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper and lower waveguide region for guiding a laser mode. The upper waveguide region is positioned in the interior regions of the SCOWL. The lower waveguide region also guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the SCOWL is permitted to define one or more ridge structures leaving the active region unetched.