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:
Jul. 11, 1995
Filed:
Nov. 16, 1993
Applicant:
Inventors:
Andrew G Dentai, Atlantic Highlands, NJ (US);
Fumio Koyama, Sagamihara, JP;
Kang-Yi Liou, Holmdel, NJ (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437129 ; 437110 ;
Abstract
A monolithically integrated electroabsorption modulator/optical amplifier is described which is prepared using a lateral bandgap control technique with a planar III-V compund semiconductor substrate. The described device evidences a bandgap shift in excess of 60 nanometers, so indicating its applicability for integration of modulators and lasers or amplifiers. The device is fabricated by atmospheric pressure metal organic condensed vapor deposition growth of gallium indium arsenise/gallium indium aresenide phosphide strained quantum wells on ridges deposited on the substrate.