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Título: | Transmission performance improvement using random DFB laser based Raman amplification and bidirectional second-order pumping |
Autor: | Tan, Mingming; Rosa, Pawel CSIC ORCID; Le, S.T.; Iqbal, M. A.; Phillips, I.D.; Harper, P. | Fecha de publicación: | 27-ene-2016 | Editor: | Optical Society of America | Citación: | Optics Express 24: 2215-2221 (2016) | Resumen: | We demonstrate that a distributed Raman amplification scheme based on random distributed feedback (DFB) fiber laser enables bidirectional second-order Raman pumping without increasing relative intensity noise (RIN) of the signal. This extends the reach of 10 × 116 Gb/s DP-QPSK WDM transmission up to 7915 km, compared with conventional Raman amplification schemes. Moreover, this scheme gives the longest maximum transmission distance among all the Raman amplification schemes presented in this paper, whilst maintaining relatively uniform and symmetric signal power distribution, and is also adjustable in order to be highly compatible with different nonlinearity compensation techniques, including mid-link optical phase conjugation (OPC) and nonlinear Fourier transform (NFT). © 2016 Optical Society of America | Descripción: | 7 págs.; 5 figs.; OCIS codes: (060.1660) Coherent communications; (060.2320) Fiber optics amplifiers and oscillators; (190.5650) Raman effect. | Versión del editor: | http://doi.org/10.1364/OE.24.002215 | URI: | http://hdl.handle.net/10261/150419 | DOI: | 10.1364/OE.24.002215 | Identificadores: | doi: 10.1364/OE.24.002215 issn: 1094-4087 |
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