Title :
Impact of optical filtering on duobinary transmission
Author :
Lyubomirsky, Ilya ; Pitchumani, Bharath
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Riverside, CA, USA
Abstract :
An experimental investigation into the effects of optical filtering on 10-Gb/s duobinary transmission is presented. It is found that duobinary transmission systems benefit substantially from narrow optical filtering at the receiver. A 2-3- dB Q improvement in amplified spontaneous emission (ASE) noise-limited performance is obtained by optimizing the optical filter bandwidth. The duobinary modulation is compared to nonreturn-to-zero modulation as a function of optical filter bandwidth in ASE noise-limited and dispersion-limited regimes.
Keywords :
optical fibre communication; optical filters; optical modulation; optical noise; optical receivers; wavelength division multiplexing; 10 Gbit/s; amplified spontaneous emission noise; duobinary modulation; duobinary transmission; optical filtering; receiver; Filtering; Optical attenuators; Optical crosstalk; Optical filters; Optical modulation; Optical noise; Optical receivers; Optical signal processing; Optical transmitters; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.829751
