Title :
Analysis of optical crosstalk effects in multi-wavelength switched networks
Author :
Zhou, J. ; O´Mahony, M.J. ; Walker, S.D.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
Two optical crosstalk mechanisms, homo- and hetero-wavelength crosstalk, are identified in multi-wavelength switched networks. Homo-wavelength crosstalk does not arise in point-point systems and is a significant factor in multi-wavelength network design. A new signal dependent statistical model was used to evaluate the crosstalk effects due to non-ideal filtering in an established multi-wavelength transport network architecture. The authors find that the optical filters used in this network must have an adjacent channel rejection of /spl ges/20 dB in order to achieve the system design target of 622 Mbit/s channel base rate, at 10/sup /spl minus/10/ BER with 1 dB crosstalk penalty through 10 nodes.<>
Keywords :
crosstalk; error statistics; optical fibres; optical filters; optical links; telecommunication networks; BER; adjacent channel rejection; channel base rate; multiwavelength switched networks; nonideal filtering; optical crosstalk; optical filters; statistical model; system design; transport network architecture; Filtering; Intelligent networks; Optical crosstalk; Optical fiber networks; Optical filters; Optical network units; Optical receivers; Optical switches; Optical transmitters; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
