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:
Jun. 07, 2005
Filed:
Feb. 05, 2002
Seok-hyun Yun, Santa Clara, CA (US);
In-kag Hwang, Sunnyvale, CA (US);
Kwan IL Lee, Sunnyvale, CA (US);
Hyo-sang Kim, Santa Clara, CA (US);
Pavel G. Polynkin, Fremont, CA (US);
Helge E. Engan, Santa Clara, CA (US);
Wayne V. Sorin, Mountain View, CA (US);
Seok-Hyun Yun, Santa Clara, CA (US);
In-Kag Hwang, Sunnyvale, CA (US);
Kwan Il Lee, Sunnyvale, CA (US);
Hyo-Sang Kim, Santa Clara, CA (US);
Pavel G. Polynkin, Fremont, CA (US);
Helge E. Engan, Santa Clara, CA (US);
Wayne V. Sorin, Mountain View, CA (US);
Novera Optics, Inc., Palo Alto, CA (US);
Abstract
This invention relates to an acousto-optical tunable filter generally of the kind described in U.S. Pat. No. 6,266,462. More specifically, the invention relates to a filter and its construction, the filter including a support, first and second mounts at spaced locations on the support, an optical fiber having first and second mounted portions secured to the first and second mounts respectively and a filtering section between the first and second mounted portions, a signal generator operable to generate a periodic signal, and an electro-acoustic transducer having a terminal connected to the signal generator and an actuating portion, the electric signal causing vibration of the actuating portion, and the actuating portion being connected to the filtering section so that the vibration generates a transverse wave traveling along the filtering section. The filter has an improved damper to more effectively dampen waves traveling along the filtering section.