Yuan-Jie Yang

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This work proposes an air-gap Fiber Fabry-Pérot Interferometer (AG-FFPI) using a hollow core fiber coated with a layer of new polymer, NOA87 for the measurement of relative humidity (RH) and temperature (T). The principle is based on variations of the cavities that are moisture and temperature sensitive to change the interference patterns.(More)
This paper presents a novel design method in which a dual-polymer fiber Fizeau interferometer (DPFFI) is proposed for simultaneously measuring relative humidity (RH) and temperature (T). Since the polymer is intrinsically highly sensitive to both RH and T, the polymer fiber Fizeau interferometer (PFFI) exhibits cross-sensitivity of RH and T. In general, it(More)
This study presents a polymer-coated hollow-core-fiber-Fabry-Perot interferometer to measure liquid level. Wavelength shift of interference fringes of the proposed device exhibits linear response corresponding to the liquid level with a high sensitivity of −0.446nm/cm.
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