64 channels 1Gbit/s ultra-dense WDM PON system based on coherent heterodyne receiver

Author

He, Chao ; Chen, Hongwei ; Chen, Minghua ; Xie, Shizhong

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

Volume

2

fYear

2011

fDate

29-31 July 2011

Abstract

In this paper, we present a new structure of PON system based on coherent heterodyne receivers. The coherent detection enables a filterless ultra-dense WDM system. We simulated a 64 channel system with 10GHz channel spacing, offering symmetrical 1 Gbit/s sustained data rate per user both downlink and uplink by single fiber. The quadrature phase-shift keying (QPSK) modulation format is applied to downstream data for higher spectrum efficiency, while we use Amplitude Modulation (AM) on upstream data to reduce the system cost.

Keywords

heterodyne detection; optical modulation; passive optical networks; quadrature phase shift keying; wavelength division multiplexing; wireless channels; QPSK modulation; amplitude modulation; bit rate 1 Gbit/s; channel spacing; coherent detection; coherent heterodyne receiver; downstream data; filterless ultra-dense WDM system; quadrature phase shift keying modulation; single fiber; ultra-dense WDM PON system; upstream data; Frequency conversion; Frequency modulation; Optical fibers; Optical filters; Optical polarization; Passive optical networks; Coherent detection; QPSK; WDM PON;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Optoelectronics (ICEOE), 2011 International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-61284-275-2

Type

conf

DOI

10.1109/ICEOE.2011.6013167

Filename

6013167