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10 Gb/s NRZ transmission over 1800 km multiple pumped distributed Raman amplified transmission link without lumped amplifiers

: Schulze, E.; Freund, R.; Malach, M.; Raub, F.


TU Eindhoven:
27th European Conference on Optical Communication 2001. Proceedings. Vol.2: Regular papers & invited papers : Symposia on selected topics: Convergence of IP and optical networking, polymer fiber communication, optical interconnects, photonic crystals, from physical concepts to device implementation, September 30 - October 4, 2001, RAI Congress Centre, Amsterdam, The Netherlands
Piscataway, NJ: IEEE, 2001
ISBN: 0-7803-6705-7
European Conference on Optical Communication (ECOC) <27, 2001, Amsterdam>
Fraunhofer HHI ()
distributed amplifiers; optical communication equipment; optical fibre communication; raman lasers; wavelength division multiplexing; distributed raman amplified transmission link; edfa-free nrz transmission; raman gain; simulation; wdm transmission; 10 Gbit/s; 1800 km; 45 db

10 Gb/s EDFA-free NRZ transmission over 1800 km distributed Raman amplified links with 45 dB gain has been demonstrated. This is, to the best of our knowledge, the longest distributed Raman amplified 10 Gb/s transmission without lumped amplifiers. The problems of achieving the necessary very high Raman gain has been solved. For simulating the Raman amplification process a novel model has been developed and verified by experiments.