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:
Nov. 13, 2007
Filed:
May. 14, 2004
Applicants:
Chih-tsung Shih, Hsinchu, TW;
Chen-bin Huang, Hsinchu, TW;
Daniel Yen Chu, Hsinchu, TW;
Yu-chen Yu, Hsinchu, TW;
Inventors:
Chih-Tsung Shih, Hsinchu, TW;
Chen-Bin Huang, Hsinchu, TW;
Daniel Yen Chu, Hsinchu, TW;
Yu-Chen Yu, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01); G02F 1/00 (2006.01); G02F 1/295 (2006.01);
U.S. Cl.
CPC ...
Abstract
This specification discloses a power polarization beam combiner and its applications in fiber communications. The power polarization beam combiner uses the photonic band gap formed in a photonic crystal to produce a left-hand material with a negative refractive index and high dispersion rate. Using such properties of the photonic crystal, several beams with different wavelengths and polarizations are combined and output to a common port.