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Double Raman Amplified Bus Networks for Wavelength-Division Multiplexing of Fiber-Optic Sensors

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4 Author(s)
Diaz, S. ; Departamento de Ingenieria Electrica y Electronica, Univ. Publica de Navarra, Pamplona ; Cerrolaza, B. ; Lasheras, G. ; Lopez-Amo, M.

In this paper, three different double Raman fiber bus networks are compared and demonstrated experimentally for the first time as a means of gathering information from wavelength-division-multiplexed optical sensors: the double-bus scheme, the improved double-bus configuration, and the hybrid topology. We report how these structures reduce the received amplified-spontaneous-scattering noise generated. This low-noise configuration yields signal-to-noise ratios over 43 dB and increases the number of sensors that could be multiplexed in a single structure. Furthermore, the last one enables the reutilization of the gratings' wavelengths

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Lightwave Technology, Journal of  (Volume:25 ,  Issue: 3 )