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Simultaneous Sensing of Refractive Index and Temperature with a Supermode Interferometer
2021
Journal of Lightwave Technology
In general, a sensor is used to monitor a single parameter only, and in many cases, a reference sensor is necessary to compensate the effect of temperature. Here, we demonstrate that a single supermode interferometer is capable of monitoring two parameters simultaneously. Said interferometer was fabricated with a segment of strongly coupled multicore fiber fusion spliced at the end of a standard single mode fiber. The free end of the multicore fiber was flat, thus, it behaved as a low
doi:10.1109/jlt.2021.3113863
fatcat:3ldi2o7apjagjhfrarqhvfp6wa