An optical multiaccess star network using subcarrier multiplexing

Author

Jiang, Q. ; Kavehrad, M.

Author_Institution

Dept. of Electr. Eng., Ottawa Univ., Ont., Canada

Volume

4

Issue

10

fYear

1992

Firstpage

1163

Lastpage

1165

Abstract

A fibre-optic multiaccess star network using subcarrier multiplexing and coherent detection is proposed. The network uses only one transmitter laser and is free of beat noise. The laser power is distributed among the users at different locations through the star network itself and provides the light sources for the users. Each user modulates the optical signal with a microwave subcarrier using a Mach-Zehnder intensity modulator and can select any of the subcarrier channels using an optical heterodyne receiver. the power requirement for the laser is moderate (6 dBm for a 63-user network) and the network throughput is mainly limited by the bandwidth of the intensity modulators.<>

Keywords

multi-access systems; optical fibres; optical links; subcarrier multiplexing; Mach-Zehnder intensity modulator; beat noise; coherent detection; intensity modulators; laser power; light sources; microwave subcarrier; network throughput; optical fibres; optical heterodyne receiver; optical multiaccess star network; subcarrier multiplexing; transmitter laser; Fiber lasers; Intensity modulation; Laser noise; Masers; Optical fiber networks; Optical mixing; Optical modulation; Optical noise; Optical receivers; Optical transmitters;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.163766

Filename

163766