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:
Apr. 08, 2014
Filed:
May. 03, 2010
Chun Ju Youn, Daejeon, KR;
Yong-hwan Kwon, Daejeon, KR;
Jong-hoi Kim, Daejeon, KR;
Joong-seon Choe, Daejeon, KR;
Kwang-seong Choi, Daejeon, KR;
Kyoungwoo Heo, Gyeongsanbuk-Do, KR;
Eun Soo Nam, Daejeon, KR;
Chun Ju Youn, Daejeon, KR;
Yong-Hwan Kwon, Daejeon, KR;
Jong-Hoi Kim, Daejeon, KR;
Joong-Seon Choe, Daejeon, KR;
Kwang-Seong Choi, Daejeon, KR;
Kyoungwoo Heo, Gyeongsanbuk-Do, KR;
Eun Soo Nam, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a polarization division multiplexed optical OFDM transmitter. The polarization division multiplexed optical OFDM transmitter includes a data demultiplexer, a training symbol generation unit and an optical up-converter and polarization division multiplexing unit. The data demultiplexer divides a transmission signal into a plurality of groups. The training symbol generation unit allocates a plurality of training symbols for each OFDM data which is included in the respective multiplexed groups, and allocates repetitive data in a time domain for the respective training symbols for data of 0 to periodically appear for the respective training symbols in a frequency domain. The optical up-converter and polarization division multiplexing unit performs optical frequency band conversion and polarization division multiplexing on an output of the training symbol generation unit to output a polarization division multiplexed optical OFDM signal corresponding to a plurality of polarization components.