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:
May. 08, 2007
Filed:
Aug. 05, 2004
Sung Jun Lee, Seoul, KR;
Yoon Shik Hong, Kyungki-do, KR;
RO Woon Lee, Seoul, KR;
Jong Sam Kim, Kyungki-do, KR;
Sung Jun Lee, Seoul, KR;
Yoon Shik Hong, Kyungki-do, KR;
Ro Woon Lee, Seoul, KR;
Jong Sam Kim, Kyungki-do, KR;
Samsung Electro-Mechanics Co., Ltd., Kyungki-do, KR;
Abstract
Disclosed herein is a cantilever-type PLC optical attenuator. The optical attenuator includes a base substrate made of silicon, an input waveguide, and output waveguide. Front portions of the upper and lower silicon substrates around the output waveguide are thinner than rear portions of the upper and lower silicon substrates around the output waveguide to provide a cantilever part having upper and lower cantilever substrate parts. A first electrode is provided on a bottom of the lower cantilever substrate part, and a second electrode is provided on the base substrate to electromagnetically correspond to the first electrode. When a voltage is applied between the first and second electrodes, the cantilever part moves up and down by an electromagnetic force, thus controlling the output light.