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. 27, 1992
Filed:
Sep. 28, 1990
Greg E Blonder, Summit, NJ (US);
Edwin A Chandross, Berkeley Heights, NJ (US);
Seng-Tiong Ho, Murray Hill, NJ (US);
Samuel L McCall, Chatham, NJ (US);
Richart E Slusher, Lebanon, NJ (US);
Kenneth W West, Mendham, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
Distributed Bragg Reflectors of high efficacy based on alternating layers of large difference in refractive index are fabricated by epitaxial growth followed by etchant removal and back-filling to produce a structure in which alternation is between layers of retained epitaxially grown material and layers of back-filled material. Such reflectors may serve simply as mirrors or may be incorporated in a variety of devices including lasers, LEDs, detectors, optical switches in which the DBRs serve e.g. for cavitation.