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:
May. 07, 2002
Filed:
Mar. 29, 1999
Ching-Long Jiang, Belle Mead, NJ (US);
Randall Brian Wilson, Maplewood, NJ (US);
Mark Rafael Soler, Whippany, NJ (US);
The Whitaker Corporation, Wilimington, DE (US);
Abstract
An edge emitting laser comprising a substrate with or without a buffer layer having a central mesa disposed thereon, said central mesa having a bottom surface, a top surface and side surfaces and said mesa having an active layer disposed on said substrate with or without a buffer layer, a cladding layer disposed on said active layer, and a quaternary layer disposed on said cladding layer; first and second blocking layers disposed along said sides of said mesa; and at least one alignment fiducial disposed along an outer region of the laser, said alignment fiducial comprising at least a first surface and a second surface, said first surface being a certain distance from said active layer in the y-direction and said second surface being a certain distance from said active layer in the x-direction, said first surface comprising at least a portion of the top of said quaternary layer, said second surface comprising at least a portion of a side of at least one of said quaternary, cladding, or active layers.