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. 29, 1991
Filed:
Feb. 13, 1990
Applicant:
Inventors:
Thomas W Whitehead, Raleigh, NC (US);
Robert G Hunsperger, Newark, DE (US);
Garfield Simms, Dover, DE (US);
Assignees:
The Univ. of Delaware, Newark, DE (US);
E. I. DuPont de Nemours & Co., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 19 ; 357 17 ; 372 44 ; 372 45 ; 372 50 ; 25022724 ; 250551 ; 350 9615 ; 350 9617 ;
Abstract
A unitary emitter-detector diode device for direct optical coupling to optical transmission lines as two surface oriental optical fibers on lateral surfaces of the device. The device has a p-n junction formed between a heavily doped semiconducting layer and a lightly doped semiconducting layer and means for guiding and concentrating the recombination of carriers within the diode. The feed through geometry permits transmitting in either direction from the device as well as detecting.