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:
Nov. 02, 1999
Filed:
May. 03, 1999
Robert Ralph Abbott, Westfield, NJ (US);
George Wayne Berkstresser, Bridgewater, NJ (US);
Charles David Brandle, Jr, Basking Ridge, NJ (US);
Vincent Jerome Fratello, Basking Ridge, NJ (US);
Steven Joy Licht, Bridgewater, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
In an arrangement substantially like an optical isolator, appropriate choice of the composition of the magneto-optic element can result in a variable optical attenuator. The composition is selected to vary in the direction of light propagation, and also is selected such that the magneto-optic element comprises a compensation wall. The compensation wall is movable in response to a change in the temperature of the magneto-optic element, whereby the attenuation of the device is changed.