Analytical solution of transmission performance improvement in fiber spans with forward Raman gain and its application to repeaterless systems

A simple analytical expression for the optical signal-to-noise ratio (SNR) benefit expected from adding forward Raman gain to backward Raman gain in a fiber transmission span is derived. This result is then applied to modify the stimulated Brillouin scattering (SBS) threshold for the case of a signa...

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Veröffentlicht in:	Journal of lightwave technology 2005-03, Vol.23 (3), p.1182-1188
Hauptverfasser:	Kung, A.P., Agarwal, A., Grosz, D.F., Banerjee, S., Maywar, D.N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Brillouin scattering Circuit properties Coding, codes Distributed Raman amplifiers Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Exact solutions Fiber nonlinear optics Fibers Gain Information, signal and communications theory Integrated optics. Optical fibers and wave guides Mathematical analysis Optical and optoelectronic circuits Optical fiber communications Optical fibers Optical scattering Optical telecommunications Performance analysis Performance gain Raman scattering Repeaters return-to-zero (RZ) Scattering Signal analysis Signal and communications theory Signal to noise ratio Stimulated emission Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) wavelength division multiplexing (WDM)
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Beschreibung
Zusammenfassung:	A simple analytical expression for the optical signal-to-noise ratio (SNR) benefit expected from adding forward Raman gain to backward Raman gain in a fiber transmission span is derived. This result is then applied to modify the stimulated Brillouin scattering (SBS) threshold for the case of a signal experiencing forward Raman gain. These concepts are applied to demonstrate repeaterless transmission of 10 and 40 Gb/s data rates over standard single mode fiber (SSMF).
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2005.843474