Title :
Single-laser high-selectivity bidirectional transmission system for local-area-network applications
Author :
Olsson, N.A. ; Buhl, Lawrence L.
Author_Institution :
AT&T Bell Laboratories, Holmdel, USA
Abstract :
Bidirectional transmission at 90Mbit/s over 30 km of fibre using a single laser source is demonstrated. At the subscriber end, a narrowband resonant optical amplifier serves not only as amplifier, but also as detector, modulator and optical filter. The coherent Rayleigh noise, encountered in previous single-laser bidirectional systems, is eliminated by using a subcarrier modulation scheme. The demonstrated capacity is more than an order of magnitude improvement over similar systems.
Keywords :
local area networks; optical fibres; optical links; 30 km; 90 Mbit/s; LAN; coherent Rayleigh noise; high-selectivity bidirectional transmission system; local-area-network; narrowband resonant optical amplifier; optical fibres; optical filter; optical links; single laser source; single-laser bidirectional systems; subcarrier modulation scheme;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870045
