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:
Jan. 06, 1998
Filed:
Apr. 30, 1996
Michelle S Malcuit, Bethlehem, PA (US);
Thomas W Stone, Bethlehem, PA (US);
Jeffrey A Kleinfeld, Bethlehem, PA (US);
Wavefront Research, Inc., Bethlehem, PA (US);
Abstract
A vertical cavity signal suppressor array having a plurality of suppressor elements, each of which incorporate therein an active semiconductor region bounded by reflective elements and a source of current 20 connected thereto. When in operation within a multichannel optical system a preselected signal suppressing element the signal suppressor array is turned 'on' in the selected channel of interest. This is accomplished by either injecting a small current through the reflective elements or by optical pumping, and the desired signal channel is transmitted with little or no loss. All the non-selected channels remain undriven or 'off', that is, a state in which they are strongly absorptive.