Performance Evaluation of Soliton-based and Non-Soliton All-Optical WDM Systems

S.K. Pavan, B. Mumey, and R.S. Wolff (USA)


Optical networks, WDM, solitons, routing andwavelength assignment


This paper presents a performance evaluation of soliton and non-soliton-based all-optical wavelength division multiplexed (WDM) networks assuming the existing infrastructure (e.g., fiber and other physical layer components). The performance evaluation is carried out using the quality (Q) factor, which is a measure of the signal-to-noise ratio, and indirectly, the bit error rate (BER) of the system. We first examine the performance of soliton and non-soliton transmission on multiwavelength links consisting of multiple spans with EDFAs to compensate for fiber loss, and the results show that the soliton-based systems perform much better than the non-soliton systems for typical system parameters with the existing infrastructure for bit rates of up to 10Gbps per channel. We then present a sample WDM based optical network with mesh topology, consider alternative routing and wavelength assignments, and show that the end-to-end Q factor of a soliton system is higher than that of a non-soliton system.

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