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:
Sep. 27, 2005
Filed:
Aug. 27, 2003
Seok-hyun Yun, Santa Clara, CA (US);
Hyo-sang Kim, Taejon, KR;
In-kag Hwang, Taejon, KR;
Wayne Victor Sorin, Mountain View, CA (US);
Hee-yeal Rhy, DaeJeon, KR;
Seok-Hyun Yun, Santa Clara, CA (US);
Hyo-Sang Kim, Taejon, KR;
In-Kag Hwang, Taejon, KR;
Wayne Victor Sorin, Mountain View, CA (US);
Hee-Yeal Rhy, DaeJeon, KR;
Novera Optics, Inc., Palo Alto, CA (US);
Abstract
A method to reduce optical intensity modulation is described that involves generating a spiraling wave onto an acoustic-optic interaction portion of an optical fiber within an acousto-optic filter in order to create reflected waves that are orthogonal with respect to waves that are originally launched onto the interaction portion. A transducer is described having a first section and a second section. The first and second sections each have a polling direction along a first axis. The transducer also has a third section and a fourth section. The third and fourth sections each have a polling direction along a second axis. The third and fourth sections are each between the first and second sections. An acousto-optic filter having a horn with an elliptical cross section coupled to a transducer is also described. A transducer for an excitation element capable of launching spiraling acoustic waves is described.