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:
Sep. 24, 1996
Filed:
Jun. 06, 1995
Kent D Choquette, Albuquerque, NM (US);
Robert S Freund, Livingston, NJ (US);
Minghwei Hong, Watchung, NJ (US);
Daryoosh Vakhshoori, Chatham Township, Morris County, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
This invention involves a vertical cavity surface emitting laser ('VCSEL') having a Group III-V semiconductor epitaxial mesa structure with an electrically insulating sidewall located on the mesa's sidewalls for confinement of the optical radiation generated in the laser. A suitably doped Group III-V epitaxial layer or a layer of insulating material such as silicon dioxide acts as the insulating sidewall layer. Advantageously, the structure has a self-aligned ohmic contact layer located everywhere on the top surface of the epitaxial mesa structure.