Transmission of Spectral Efficient Super-Channels Using All-Optical OFDM and Digital Coherent Receiver Technologies

Author

Huang, Yue-Kai ; Ip, Ezra ; Wang, Zhenxing ; Huang, Ming-Fang ; Shao, Yin ; Wang, Ting

Author_Institution

NEC Labs. America Inc., Princeton, NJ, USA

Volume

29

Issue

24

fYear

2011

Firstpage

3838

Lastpage

3844

Abstract

A 1.5 Tb/s super-channel is generated using all-optical orthogonal frequency-division multiplexing (OFDM) and dual-polarization 16QAM modulation without guard interval. We investigated the effects of DSP oversampling and receiver bandwidth using experimental results and numerical simulations to evaluate our receiver design. The super-channel is transmitted over 1200 km of standard single-mode fiber on existing 100 GbE network using only 200 GHz of optical bandwidth and detected using digital coherent receiver, achieving a spectral efficiency of 7 bit/s/Hz the highest reported to date for all-optical OFDM techniques.

Keywords

OFDM modulation; optical fibre networks; optical modulation; optical receivers; quadrature amplitude modulation; 100 GbE network; DSP oversampling; all-optical OFDM; bit rate 1.5 Tbit/s; digital coherent optical technology; distance 1200 km; dual-polarization 16QAM modulation; guard interval; receiver bandwidth; spectral efficiency; spectral efficient super-channels; standard single-mode fiber; Digital signal processing; OFDM; Optical fiber communication; Optical receivers; WDM networks; Digital signal processing; optical fiber communication; optical signal detection; optical signal processing; orthogonal frequency-division multiplexing (OFDM); wavelength-division multiplexing (WDM) networks;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2172186

Filename

6046086