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:
May. 05, 1998
Filed:
Jan. 03, 1997
Applicant:
Inventor:
Andrew Gomperz Dentai, Atlantic Highlands, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257435 ; 257436 ; 257440 ;
Abstract
The specification describes a discriminating photodiode for detection of 1.55 .mu.m signals used in wavelength multiplexed systems operating with 1.3 .mu.m and 1.55 .mu.m wavelengths. The device uses a semiconductor layered structure to absorb photons from the 1.3 .mu.m signal, and annihilate the photogenerated carriers, while passing the 1.55 .mu.m light to a photodetecting junction beneath the layered structure.