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. 19, 2011
Filed:
Dec. 16, 2008
Rajaram Bhat, Painted Post, NY (US);
Jerome Napierala, Painted Post, NY (US);
Dmitry Sizov, Corning, NY (US);
Chung-en Zah, Holmdel, NJ (US);
Rajaram Bhat, Painted Post, NY (US);
Jerome Napierala, Painted Post, NY (US);
Dmitry Sizov, Corning, NY (US);
Chung-En Zah, Holmdel, NJ (US);
Corning Incorporated, Corning, NY (US);
Abstract
Multi-quantum well laser structures are provided comprising active and/or passive MQW regions. Each of the MQW regions comprises a plurality of quantum wells and intervening barrier layers. Adjacent MQW regions are separated by a spacer layer that is thicker than the intervening barrier layers. The bandgap of the quantum wells is lower than the bandgap of the intervening barrier layers and the spacer layer. The active region may comprise active and passive MQWs and be configured for electrically-pumped stimulated emission of photons or it may comprises active MQW regions configured for optically-pumped stimulated emission of photons.