Title :
All-optical regeneration at the receiver of 10-Gb/s RZ data transmitted over 30 000 km using an electroabsorption modulator
Author :
Cho, Pak S. ; Sinha, Pranay ; Mahgerefteh, Daniel ; Carter, Gary M.
Author_Institution :
Lab. for Phys. Sci., College Park, MD, USA
Abstract :
We have demonstrated all-optical regeneration (reshape and reamplify) at the receiver of 10-Gb/s return-to-zero (RZ) data transmitted over 30 000 km in a dispersion-managed system using cross-absorption modulation in an electroabsorption modulator at the receiver. The nonlinear optical transmission characteristic of the modulator increases the signal-to-noise ratio by preferentially suppressing the accumulated amplified spontaneous emission noise of the propagated signal. Fast recovery of the optical absorption under reverse bias allows high data-rate operation without bit-patterning effect. The error-free propagation distance of the dispersion-managed system and its performance is increased as a result of the regeneration.
Keywords :
data communication; electro-optical modulation; electroabsorption; optical fibre dispersion; optical receivers; optical repeaters; telecommunication network management; 10 Gbit/s; 30000 km; Gb/s RZ data transmission; Gb/s return-to-zero data transmission; accumulated amplified spontaneous emission noise; all-optical regeneration; bit-patterning effect; cross-absorption modulation; dispersion-managed system; electroabsorption modulator; error-free propagation distance; high data-rate operation; nonlinear optical transmission characteristic; optical absorption; propagated signal; receiver; reverse bias; signal-to-noise ratio; Absorption; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical filters; Optical modulation; Optical noise; Optical pulses; Optical receivers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
