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Novel physical-layer impairment-aware routing algorithm for translucent optical networks with 43 Gb/s and 107 Gb/s channels

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3 Author(s)
Pachnicke, S. ; High Freq. Inst., Tech. Univ. Dortmund, Dortmund, Germany ; Luck, N. ; Krummrich, P.M.

We present a novel constraint-based routing (CBR) algorithm, which accurately estimates linear and nonlinear physical-layer impairments of 43 and 107 Gb/s channels with duobinary and DQPSK modulation formats by combining fast analytical models for assessing the linear transmission impairments with a split-step Fourier approach optimized for computational speed to estimate the nonlinear intra-channel effects. Our CBR algorithm allows a significant increase in average and maximum transparent distance and thus a reduction in the number of required regenerators.

Published in:

Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on

Date of Conference:

June 28 2009-July 2 2009