Oe, Ryo Tokushima University
Minamikawa, Takeo Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Taue, Shuji Kochi University of Technology
Koresawa, Hidenori Tokushima University
Mizuno, Takahiko Tokushima University
Yamagiwa, Masatomo Tokushima University
Iwata, Tetsuo Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Yasui, Takeshi Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
We proposed a refractive index (RI) sensing method with temperature compensation by using an optical frequency comb (OFC) sensing cavity including a multimode-interference (MMI) fiber, namely, the MMI-OFC sensing cavity. The MMI-OFC sensing cavity enables simultaneous measurement of material-dependent RI and sample temperature by decoding from the comb spacing frequency shift and the wavelength shift of the OFC. We realized the simultaneous and continuous measurement of RI-related concentration of a liquid sample and its temperature with precisions of 1.6 × 10−4 RIU and 0.08 °C. The proposed method would be a useful means for the various applications based on RI sensing.
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oe_27_15_21463.pdf 4.42 MB
Science and Technology