Demonstration of a real-time 16 QAM encoded 11.52 Gb/s OFDM transceiver for IM/DD OFDMA-PON systems

Author

Seung-Hyun Cho ; Kyong Whan Doo ; Jie Hyun Lee ; Jonghyun Lee ; Seung Il Myong ; Sang Soo Lee

Author_Institution

Opt. Access Network Res. Team, ETRI, Daejeon, South Korea

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

1

Lastpage

2

Abstract

We successfully demonstrated real-time 16 quadrature amplitude modulation (QAM) encoded 11.52 Gb/s optical orthogonal frequency division multiplexing (OFDM) transceiver and experimentally investigated its optical transmission performances for OFDMA-PON systems. Considering practical deployment of OFDMA-PON, we decided to design and implement the 128 fast Fourier transform (FFT) in our OFDM baseband transceiver. So, the number of available OFDM subcarrier was 63, which would be sufficient for accommodating 32 subscribers. We successfully achieved BER below 1×10^-3 and also observed negligible power penalty over SMF 20km.

Keywords

OFDM modulation; encoding; error statistics; fast Fourier transforms; frequency division multiple access; optical design techniques; optical transceivers; passive optical networks; quadrature amplitude modulation; BER; FFT; IM/DD OFDMA-PON systems; OFDM subcarrier; OFDM transceiver; SMF; bit rate 11.52 Gbit/s; distance 20 km; fast Fourier transform; optical orthogonal frequency division multiplexing; optical transmission performances; power penalty; quadrature amplitude modulation; real-time 16 QAM encoding; OFDM; Optical fibers; Optical receivers; Optical transmitters; Passive optical networks; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS), 2013 18th

Conference_Location

Kyoto

Type

conf

Filename

6597436