Plastic optical fiber multipoint liquid-level sensor with single semi-cylindrical detection element

Khotiaintsev, S.; Perez-Garcia, S.; Beltrán-Hernández, Alfredo; Llanito-Caudillo, Enrique

doi:10.1117/12.868220

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2013

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(2 citation statements)

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“…One optical fiber is connected to a remote optical source (1) and the other one to a photo detector (6). The two optical fibers (2) and (5) are coupled via internal reflections of light at the semi-cylindrical working surface of the optical detection element.…”

Section: Sensor Descriptionmentioning

confidence: 99%

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Polarization effects in a fiber optic refractometric sensor with semi-cylindrical plastic detection element

Perez-Garcia

Khotiaintsev

2013

SPIE Proceedings

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We investigated experimentally the response of the fiber-optical refractometric sensor with semi-cylindrical plastic detection element under different polarization states of the input light. Our results demonstrate that the state of polarization of light in such sensor has a significant effect on the sensor response to external refractive index. This property can be exploited, in particular, for adjusting the form and linearity of the sensor response in situations when such adjustment cannot be achieved by modification of the sensor geometrical parameters and material constants.

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Section: Sensor Descriptionmentioning

confidence: 99%

“…In our previous papers we described an intensity-type fiber-optical refractometric sensor with semi-cylindrical plastic detection element [4][5][6] . In this paper, we investigate the effect of polarization of light in the performance of this sensor.…”

Section: Introductionmentioning

confidence: 99%