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:
Mar. 16, 2010
Filed:
Aug. 12, 2005
Applicants:
Bongjun Lee, Seoul, KR;
Jongkyun Hong, Seoul, KR;
Inventors:
Bongjun Lee, Seoul, KR;
Jongkyun Hong, Seoul, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an optical wavelength coupler using a multi-mode interference. The optical wavelength coupler is a planar waveguide type optical device that can distribute or couple two optical signals having different wavelengths by using the multi-mode interference. The optical wavelength coupler is suitable for integration and is small-sized. Also, the optical wavelength coupler has a low manufacturing tolerance and a low loss, and is insensitive to TE/TM polarization.