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:
Aug. 14, 1990
Filed:
Sep. 20, 1988
Applicant:
Inventors:
Garfield Simms, Dover, DE (US);
Robert G Hunsperger, Newark, DE (US);
Assignee:
The University of Delaware, Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G01C / ;
U.S. Cl.
CPC ...
25022711 ; 357 19 ; 372 45 ; 250551 ;
Abstract
This invention relates to a double heterostructure diode and photodiode which is selectively switchable between an emission mode and receiving mode. A light emitting active region is localized and restricted by limitation of the area of contact to a window in a silicon dioxide layer and an optical fiber is coupled to the diode at a lateral surface to provide substantially greater light emission from the lateral surface than from side emission.