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. 18, 2000
Filed:
Jun. 09, 1999
Applicant:
Inventors:
Mark Alan Rothman, Acton, MA (US);
Chan-Long Shieh, Paradise Valley, AZ (US);
Craig Alfred Armiento, Acton, MA (US);
John Alvin Thompson, Bedford, MA (US);
Alfred Joseph Negri, Waltham, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438 24 ; 438 29 ; 438 31 ; 438 42 ; 438 46 ; 438 47 ;
Abstract
A heterostructure device includes a ridge-waveguide laser monolithically integrated with a ridge-waveguide rear facet monitor (RFM). An integral V-groove etched directly into the device substrate enables passive alignment of an optical fiber to the active region of the laser. The layer and RFM facets were formed using an in-situ multistep reactive ion etch process.