Homodyne coherent detection of ASK and PSK signals performed by a subcarrier optical phase-locked loop

Author

Camatel, Stefano ; Ferrero, Valter

Author_Institution

Dipt. di Elettronica, Politecnico di Torino, Italy

Volume

18

Issue

1

fYear

2006

Firstpage

142

Lastpage

144

Abstract

Optical transmission systems based on homodyne coherent detection of two amplitude-shift keying (2-ASK) and pilot carrier two phase-shift keying (2-PSK) signals have been implemented. ASK data has been transmitted at 2.5 Gb/s, while 2.5- and 10-Gb/s PSK systems have been tested. The proposed architecture is based on a new optical phase-locked loop founded on subcarrier modulation and leads to new compact integrated receivers and new transmission formats, thus opening new opportunities for future optical systems.

Keywords

amplitude shift keying; homodyne detection; optical fibre communication; optical modulation; optical phase locked loops; optical receivers; phase shift keying; 10 Gbit/s; 2.5 Gbit/s; PSK signals; amplitude-shift keying; coherent detection; homodyne detection; integrated receivers; optical phase-locked loop; optical systems; optical transmission systems; pilot carrier two phase-shift keying; subcarrier modulation; subcarrier optical phase-locked loop; transmission formats; Amplitude shift keying; Optical filters; Optical mixing; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Phase detection; Phase locked loops; Phase shift keying; Amplitude-shift keying (ASK); coherent detection; optical phase-locked loops; phase-shift keying (PSK);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.860377

Filename

1556655