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.

Date of Patent:
Mar. 31, 1998

Filed:

May. 30, 1996
Applicant:
Inventor:

John Richard Debesis, Penfield, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359254 ; 359323 ;
Abstract

An electro-optic modulator (30) with a threshold bias. A PLZT substrate (14) has a plurality of first electrode pairs (12a) and (13a) on a first surface, and a plurality of second electrode pairs (12b) and (13b) on a second surface, which are aligned with the first plurality of electrode pairs. First and second electrode pairs are electrically isolated. A negative bias voltage is applied to the first plurality of electrode pairs (12a) and (13a). A positive bias voltage is applied to the second plurality of electrode pairs (12b) and (13b), which is approximately equal in magnitude to the first bias voltage. The bias voltage reduces the signal voltage necessary for optical transmission and improves the linearity of the electro-optic modulator (30).


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