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:
Oct. 22, 1996
Filed:
Jun. 06, 1995
Kevin W Haberern, Hopewell Junction, NY (US);
Philips Electronics North America Corporation, New York, NY (US);
Abstract
A blue, green or blue-green stripe-geometry II/VI semiconductor injection laser utilizing a Zn.sub.1-u Cd.sub.u Se active layer (quantum well) having Zn.sub.1-x Mg.sub.x S.sub.y Se.sub.1-y cladding layers and ZnS.sub.z Se.sub.1-z guiding layers is fabricated on a GaAs substrate. The stripe-geometry configuration is obtained by ion implanting a dopant such as Nitrogen or Oxygen into the structure to form blocking layer portions of higher resistivity in the second cladding layer and the second guiding layer. These blocking layer portions are positioned on both sides of, and thereby define, a stripe-shaped lateral confinement region of lower resistivity in the second cladding layer and the second cladding layer.