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:
Jan. 13, 2015
Filed:
Dec. 12, 2013
Applicants:
Oulun Yliopisto, Oulu, FI;
University of York, York, GB;
Inventors:
Assignees:
Oulun yliopisto, Oulu, FI;
University of York, York, GB;
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
H01S 5/18361 (2013.01);
Abstract
A vertical cavity surface emitting laser (VCSEL) configured to operate in a gain switching regime includes a cavity that is terminated by reflectors at both ends for enabling a standing wave of optical radiation therebetween. The cavity comprises at least one quantum well, each of the quantum wells located at a position where a value of a standing wave factor for each quantum well is between zero and one, 0<ξ<1.