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:
Jun. 14, 2005
Filed:
Nov. 17, 2003
Chan-long Shieh, Paradise Valley, AZ (US);
Hsing-chung Lee, Calabasas, CA (US);
Chan-Long Shieh, Paradise Valley, AZ (US);
Hsing-Chung Lee, Calabasas, CA (US);
JDS Uniphase Corporation, San Jose, CA (US);
Abstract
A vertical cavity surface emitting laser includes a first mirror region forming a first distributed Bragg reflector, a first cladding region, an active region, a second cladding region including a high electrical resistance implanted region positioned to define a current path, a second mirror region, and a current spreading region. A first electrical contact is positioned on the current spreading region and a second electrical contact is positioned to conduct electrical current in circuit with the first electrical contact through the current path. The current spreading region and the second mirror region cooperate to produce substantially uniform current distribution in the current path. A third mirror region is positioned on the current spreading region. The second and third mirror regions cooperate to provide a complete distributed Bragg reflector.