Coherent demodulation of 40-Gbit/s polarization-multiplexed QPSK signals with 16-GHz spacing after 200-km transmission

Author

Tsukamoto, Satoshi ; Ly-Gagnon, Dany-Sebastien ; Katoh, Kazuhiro ; Kikuchi, Kazuro

Author_Institution

Res. Center for Adv. Sci. & Technol., Univ. of Tokyo, Japan

Volume

6

fYear

2005

Abstract

40-Gbit/s polarization-multiplexed QPSK signals with 16-GHz spacing are demodulated after 200-km transmission by using a homodyne phase-diversity receiver. The highlights of our scheme are electrical post-filtering and digital signal processing that enhance the BER performance.

Keywords

demodulation; error statistics; homodyne detection; light polarisation; low-pass filters; multiplexing; optical fibre communication; optical receivers; optical signal detection; quadrature phase shift keying; signal processing; 200 km; 40 Gbit/s; BER performance; analog-to-digital converters; coherent demodulation; digital signal processing; electrical post-filtering; homodyne phase-diversity receiver; low-pass filter characteristics; polarization-multiplexed QPSK signals; Demodulation; Digital signal processing; Erbium-doped fiber amplifier; Laser feedback; Optical fiber polarization; Optical filters; Optical polarization; Optical receivers; Quadrature phase shift keying; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference, 2005. Technical Digest. OFC/NFOEC

Print_ISBN

1-55752-783-0

Type

conf

DOI

10.1109/OFC.2005.193207

Filename

1493028