Abstract
Temperature characteristics of Sensitivity-enhanced Fabry-Perot filled with PDMS temperature sensor based on Vernier effect consisting of two Fabry–Perot interferometers (FPI), one of the FPI’s cavity is internally filled with PDMS, are observed experimentally. Results show that temperature sensitivity of the Sensitivity-enhanced Fabry-Perot sensors is 1.808 nm/C. It is Vernier effect lead to a double improvement of the temperature sensitivity compared with the sensor with single FPI, of which the cavity is internally populated with PDMS but no Vernier effect. Moreover, the improvement can be enlarged by optimizing the free spectra range of these two FPIs.
© 2018 The Author(s)
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