Title :
Signed online chromatic dispersion detection at 40 Gbit/s based on arrival time detection with 60 attosecond dynamic accuracy
Author :
Sandel, D. ; Mirvoda, V. ; Wust, Felix ; Noe, Reinhold ; Weiske, C.-J.
Author_Institution :
Paderborn Univ., Germany
fDate :
8/15/2002 12:00:00 AM
Abstract :
A DFB TX laser in a 40 Gbit/s optical transmission system is amplitude-modulated by 1.2% (r.m.s.). In the presence of chromatic dispersion, associated 224 MHz (r.m.s.) FM modulates signal arrival time, which is measured by lock-in detection of oscillator control voltage in RX clock recovery. Chromatic dispersion measurement noise is 33 fs/nm
Keywords :
compensation; digital communication; optical fibre communication; optical fibre dispersion; optical modulation; optical signal detection; 224 MHz; 40 Gbit/s; 60 as; DFB TX laser; Gbit/s optical transmission system; RX clock recovery; adaptive control; amplitude-modulated laser; arrival time detection; integral controller; lock-in detection; optical chromatic dispersion compensator; oscillator control voltage; signed online chromatic dispersion detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020677
