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:
Sep. 27, 2005
Filed:
Dec. 30, 2002
Joon Tae Ahn, Daejon-Shi, KR;
Sun Tak Park, Daejon-Shi, KR;
Jong Moo Lee, Daejon-Shi, KR;
Myung Hyun Lee, Daejon-Shi, KR;
Kyong Hon Kim, Daejon-Shi, KR;
Joon Tae Ahn, Daejon-Shi, KR;
Sun Tak Park, Daejon-Shi, KR;
Jong Moo Lee, Daejon-Shi, KR;
Myung Hyun Lee, Daejon-Shi, KR;
Kyong Hon Kim, Daejon-Shi, KR;
Abstract
The present invention relates to the polarization-independent optical polymeric intensity modulator independent of input signal using polymers with electro-optical property. To use the electro-optical property for electro-optical polymer, polymers must be poled by applying high voltage to the waveguide. The size of phase modulation caused by such an poling varies from the biggest value at polarization parallel to the poling to the smallest value at polarization perpendicular to the poling. Therefore, the performance of the electro-optical polymeric intensity modulator depends on the polarization state of input light. The present invention provides the polarization-independent optical polymeric intensity modulator capable of modulating the optical intensity without regard to the polarization of the input signal by making the polarizing directions of two optical paths of M-Z interferometer perpendicular each other.