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Optica Publishing Group
  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper CJ_P19

Soliton dynamics in transmission through ultralong lasers

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Abstract

It has been recently demonstrated that ultra-long Raman fibre laser (URFL) cavities can be efficiently used to generate virtually lossless transmission links through a nearly ideal provision of distributed Raman gain to the signal [1]. The first experimental demonstration of long-distance "true" soliton propagation through optical fibre was recently published using such a virtually non-dissipative link [2], paving the way for multiple applications in communications and signal processing. Although both the total signal power excursion and the maximum effective local attenuation in ultra-long cavities are extremely low compared with those of conventional transmission schemes, they still show an exponential growth with span length. Furthermore, the effective attenuation profile itself can be affected by high-power transmitted signals due to pump depletion. Hence, it is of particular importance to determine the operational limits of these virtually lossless links in terms of both cavity length and nonlinear tolerance to signal characteristics.

© 2009 IEEE

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