Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors

Silvia Diaz; Gorka Lasheras; Manuel Lopez-Amo; Paul Urquhart; Cesar Jauregui; Jose Miguel Lopez-Higuera

doi:10.1117/12.623820

23 May 2005 Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors

Silvia Diaz, Gorka Lasheras, Manuel Lopez-Amo, Paul Urquhart, Cesar Jauregui, Jose Miguel Lopez-Higuera

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623820
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

Silvia Diaz, Gorka Lasheras, Manuel Lopez-Amo, Paul Urquhart, Cesar Jauregui, and Jose Miguel Lopez-Higuera "Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623820

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