Title :
10 Gb/s NRZ transmission over 1800 km multiple pumped distributed Raman amplified transmission link without lumped amplifiers
Author :
Schulze, E. ; Freund, R. ; Malach, M. ; Raub, F.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
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.
Keywords :
Raman lasers; distributed amplifiers; optical communication equipment; optical fibre communication; wavelength division multiplexing; 10 Gbit/s; 1800 km; 45 dB; EDFA-free NRZ transmission; Raman gain; WDM transmission; distributed Raman amplified transmission link; simulation; Distributed amplifiers; Fiber lasers; Gain measurement; Laser excitation; Laser modes; Optical fiber couplers; Optical signal processing; Pump lasers; Stimulated emission; Wavelength measurement;
Conference_Titel :
Optical Communication, 2001. ECOC '01. 27th European Conference on
Print_ISBN :
0-7803-6705-7
DOI :
10.1109/ECOC.2001.988863
