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Proceedings Paper

Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors
Author(s): Silvia Diaz; Gorka Lasheras; Manuel Lopez-Amo; Paul Urquhart; Cesar Jauregui; Jose Miguel Lopez-Higuera
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Paper Abstract

We experimentally demonstrate a novel application of distributed fibre Raman amplification to a bus network for the wavelength multiplexing of optical sensors. Each sensor is uniquely identified by reflection from a fibre Bragg grating (FBG) and the distributed gain allows the number of sensors to be increased without using costly remote amplifiers. We show how the topology allows the received powers from the sensors to be equalised, even though only one Raman pump wavelength is used and we investigate how the performance depends on the launched pump power. The spectral filtering of the FBGs, combined with the distributed gain, jointly reduce the noise and we report measured signal to noise ratios.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623820
Show Author Affiliations
Silvia Diaz, Univ. Publica de Navarra (Spain)
Gorka Lasheras, Univ. Publica de Navarra (Spain)
Manuel Lopez-Amo, Univ. Publica de Navarra (Spain)
Paul Urquhart, Univ. Publica de Navarra (Spain)
Cesar Jauregui, Univ. Publica de Navarra (Spain)
Jose Miguel Lopez-Higuera, Univ. de Cantabria (Spain)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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