Hollow Fiber Coupler Sensor

We present a bi-conical optical directional coupler composed of solid and hollow core fibers. Through an evanescent wave coupling mechanism, the detection of liquid refractive index and its temperature are demonstrated. The experimental results illustrated that the sensor offers a sensitivity of [Fo...

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Detalles Bibliográficos
Autores principales: Kuruba, Nithin, Lu, Tao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412835/
https://www.ncbi.nlm.nih.gov/pubmed/30781482
http://dx.doi.org/10.3390/s19040806
Descripción
Sumario:We present a bi-conical optical directional coupler composed of solid and hollow core fibers. Through an evanescent wave coupling mechanism, the detection of liquid refractive index and its temperature are demonstrated. The experimental results illustrated that the sensor offers a sensitivity of [Formula: see text] volts per refractive index units (V/RIU) for refractive indices ranging from [Formula: see text] to [Formula: see text] with a resolution of [Formula: see text] refractive index units (RIU).

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