Mitigating modulation instability in Brillouin distributed fibre sensors

A thorough study of the generation of modulation instability (MI) in distributed Brillouin fibre sensors is presented. ASE noise co-propagating with the pump pulses within the MI gain spectrum has been identified to be an important factor seeding modulation instability and reducing its power threshold. The paper describes how optical narrowband filtering reduces the pump depletion resulting from MI, allowing pump pulses to propagate through longer distances in standard optical single-mode fibres.


Published in:
Proc. SPIE 8794. Fifth European Workshop on Optical Fibre Sensors, 87943J
Presented at:
Fifth European Workshop on Optical Fibre Sensors, Krakow, Poland, May, 2013
Year:
2013
Publisher:
Bellingham, Spie-Int Soc Optical Engineering
ISBN:
978-0-8194-9634-8
Keywords:
Laboratories:




 Record created 2013-06-30, last modified 2018-09-13

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