2 June 2014 High sensitive micro-displacement intensity fiber sensor by using a multiwavelength erbium doped fiber ring laser based on optical add-drop multiplexers
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915762 (2014) https://doi.org/10.1117/12.2059253
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
In this work, a wavelength division multiplexed fiber ring laser, based on optical add-drop multiplexers to interconnect intensity sensors has been experimentally demonstrated. Three different laser lines were obtained simultaneously all with an optical signal to noise ratio higher than 30dB. This proposed configuration is based on commercial devices and is adapted to the ITU channels normative. By using this configuration each sensor was associated with a different wavelength directly offered by each OADM and a reference wavelength was also included in order to distinguish between power variations induced by the transducer or to detect a fiber failure. This sensor system has been experimentally verified by using microbending sensors obtaining experimental slope sensitivity as good as -0.327dB/μm.
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R. A. Perez-Herrera, R. A. Perez-Herrera, D. Leandro, D. Leandro, M. Lopez-Amo, M. Lopez-Amo, } "High sensitive micro-displacement intensity fiber sensor by using a multiwavelength erbium doped fiber ring laser based on optical add-drop multiplexers", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915762 (2 June 2014); doi: 10.1117/12.2059253; https://doi.org/10.1117/12.2059253
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