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:
Jan. 29, 2008
Filed:
Nov. 16, 2005
Applicants:
Kyoung-youm Kim, Seoul, KR;
Jeong-hwan Song, Seoul, KR;
Se-yoon Kim, Yongin-si, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Maetan-Dong, Yeongtong-Gu Suwon-Si, Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A planar lightwave circuit having an optical filter, which comprises: a first waveguide; a second waveguide separated from the first waveguide, in which the width of a first cross-section opposite to the first waveguide is wider than that of a second cross-section of the other side; and a trench located between the first and second waveguides, in which the optical filter is positioned.