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Quasi-stable soliton transmission in dispersion managed fiber links with lumped amplifiers

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2 Author(s)
Chin, M.K. ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Tang, X.Y.

We study quasi-stable solitons in a cascaded fiber line with alternating positive and negative dispersions, with and without fiber loss. Although more energy is required for forming the quasi-stable solitons than the regular solitons in a uniform fiber system with the same average dispersion, the required soliton energy decreases as the energy loss in one amplification period increases, eventually approaching the same value as in a uniform fiber system. Thus, the predicted advantage of higher soliton energy in dispersion-managed system is diminished in the presence of loss.

Published in:

Photonics Technology Letters, IEEE  (Volume:9 ,  Issue: 4 )