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High-bit-rate soliton transmission using distributed amplification and dispersion management

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2 Author(s)
Liao, Z.M. ; Inst. of Opt., Rochester Univ., NY, USA ; Agrawal, G.P.

We show through numerical simulations that the use of distributed amplification together with dispersion management can permit single-channel speeds of 40 Gb/s over transoceanic distances while maintaining 100-km spacing between pumping stations. We achieve this performance by using a bidirectional pumping scheme and optimizing the dopant density such that the peak-power variations over each fiber span remain below 0.4 dB. The required pump power is less than 80 mW for a dopant density of 200 ions/μm3.

Published in:

Photonics Technology Letters, IEEE  (Volume:11 ,  Issue: 7 )