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
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);
GTE Laboratories Incorporated, Waltham, MA (US);
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile