Novel techniques for high-capacity 60-GHz fiber-radio transmission systems

Author

Noël, L. ; Wake, D. ; Moodie, D.G. ; Marcenac, D.D. ; Westbrook, L.D. ; Nesset, D.

Author_Institution

British Telecom Res. Labs., Ipswich, UK

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1416

Lastpage

1423

Abstract

A broad-band 60-GHz fiber-radio transmission experiment has been performed using a combination of novel techniques. The 60-GHz carrier signal was generated using a master/slave (M/S) distributed-feedback (DFB) laser configuration, which gave high purity and high power with very wide frequency tunability. The data path was separated in the wavelength domain from the carrier path so that a remote upconversion scheme could be used to provide a fully transparent link. An electroabsorption modulator (EAM) was used as a full duplex transceiver so that bidirectional optical transmission could be implemented without the need for a laser at the remote site. Transmission of a 120-Mb/s QPSK signal over a fiber span of 13 km and a radio path of 5 m was demonstrated. Furthermore, the downstream optical signal contained the 120-Mb/s QPSK signal multiplexed with 20 channels of TV. The upstream optical signal consisted of 120-Mb/s QPSK data only. Good error performance was simultaneously achieved in both directions

Keywords

data communication; digital radio; distributed feedback lasers; electro-optical modulation; electroabsorption; land mobile radio; laser beam applications; optical fibre networks; quadrature phase shift keying; wavelength division multiplexing; 120 Mbit/s; 13 km; 5 m; 60 GHz; EHF; MM-wave fiber-radio transmission systems; QPSK signal; bidirectional optical transmission; broadband transmission experiment; distributed-feedback laser; electroabsorption modulator; error performance; frequency tunability; full duplex transceiver; high-capacity transmission systems; master/slave DFB laser configuration; remote upconversion scheme; Distributed power generation; Fiber lasers; Frequency; Master-slave; Optical modulation; Power generation; Power lasers; Quadrature phase shift keying; Signal generators; Transceivers;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618445

Filename

618445