Demonstration of Direct Detected Optical OFDM Signals via Block-Wise Phase Switching

Author

Xi Chen ; An Li ; Qian Hu ; Jiayuan He ; Di Che ; Yifei Wang ; Shieh, William

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia

Volume

32

Issue

4

fYear

2014

fDate

Feb.15, 2014

Firstpage

722

Lastpage

728

Abstract

In this paper, we propose and demonstrate phase switching for either main carrier or subcarriers of two consecutive signal blocks to achieve fading-free double-sideband direct-detection. The proposed approach has twice of the electrical spectral efficiency (SE) of offset OFDM, and the same electrical SE as single-side band OFDM. We perform numerical simulation and verify the system robustness against polarization mode dispersion and laser phase noise. Our experimental results show that 40-Gb/s direct-detection OOFDM can be successfully delivered over 80-km SSMF with single polarization and single detector.

Keywords

OFDM modulation; numerical analysis; optical communication; phase noise; bit rate 40 Gbit/s; block-wise phase switching; consecutive signal blocks; direct detected optical OFDM Signals; direct-detection OOFDM; electrical spectral efficiency; fading-free double-sideband direct-detection; laser phase noise; numerical simulation; polarization mode dispersion; single-side band OFDM; Laser noise; OFDM; Optical fibers; Optical noise; Optical switches; Signal to noise ratio; Direct detection (DD); optical OFDM;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2295374

Filename

6687213