Polarization-sensitive optical fiber-tip ball resonators for refractive index sensing with optical backscatter reflectometer interrogator
Shaimerdenova M. Ayupova T. Nugmanova A. Dauletova A. Tosi D.
July 2021Academic Press Inc.
Optical Fiber Technology
2021#64
Optical fiber-tip ball resonators are inexpensive devices characterized by a rapid, repeatable, and reliable fabrication process through a fiber splicer. The spectral features of a ball resonator appear as low-finesse interferometer, with an optical backscatter reflectometer (OBR) interrogator. The spectrum changes in amplitude when the external refractive index (RI) varies. In this work, we present a polarization-sensitive method for the detection of spectral changes in ball resonators. We achieved a sensitivity ranging from 366.6 dB/RIU to 6691.6 dB/RIU (refractive index units) on the most sensitive polarization, improving the sensitivity of a standard detection of 18.6%–47.7% without the need of any additional component.
Ball resonator , Microsphere , Optical backscatter reflectometry , Optical fiber sensors , Polarization sensors , Refractive index sensors
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Nazarbayev University, School of Engineering and Digital Sciences, Nur-Sultan, 010000, Kazakhstan
Nazarbayev University, School of Sciences and Humanities, Nur-Sultan, 010000, Kazakhstan
National Laboratory Astana, Laboratory of Biosensors and Bioinstruments, Nur-Sultan, 010000, Kazakhstan
Nazarbayev University
Nazarbayev University
National Laboratory Astana
10 лет помогаем публиковать статьи Международный издатель
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