Crosstalk penalty in all-optical distributed switching networks
- 1 February 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 9 (2) , 250-252
- https://doi.org/10.1109/68.553109
Abstract
We report both analytical and experimental results of the power penalty due to noncoherent crosstalk in multiwavelength all-optical networks that use space-division switching. Numerical analysis reveals that the power penalty is overestimated using a Gaussian approximation with -20 dB. Numerical analysis shows a 1.8 dB power penalty for 6 crosstalk signals with each contributing -11.5 dB crosstalk while the Gaussian approximation predicts a power penalty /spl Gt/10 dB. We measure a power penalty of 1.7 dB for 3 crosstalk signals with each contributing -18 dB crosstalk. The numerical analysis agrees when the relative-intensity noise is taken into account.Keywords
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