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1 December 2005 Advanced bi-directional Raman pumping schemes for long span unrepeated WDM transmission systems
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Proceedings Volume 6019, Passive Components and Fiber-based Devices II; 60190G (2005) https://doi.org/10.1117/12.631707
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China
Abstract
In this paper we describe advanced bi-directional Raman pumping schemes for extending the maximum reach achievable in long-span unrepeated WDM transmission systems operating at 10 Gb/s. We describe both first- and higher-order bi-directional Raman pumping schemes, pointing out that co-pumping, although critical in terms of noise transfer from pump to WDM signals, can be very effective in extending the maximum system reach. New co-propagating Raman pump lasers, characterized by high power levels and low relative intensity noise, are also proposed to further increase the maximum achievable span loss, avoiding transmission penalties induced by relative intensity noise transfer.
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Fabrizio Di Pasquale, Stefano Faralli, Gabriele Bolognini, Claudia Cantini, and Giovanni Sacchi "Advanced bi-directional Raman pumping schemes for long span unrepeated WDM transmission systems", Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60190G (1 December 2005); https://doi.org/10.1117/12.631707
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