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Título del libro: 2024 International Conference Laser Optics, Iclo 2024 - Proceedings
Título del capítulo: A comparison of the sensitivity of two temperature sensing devices, designed in fiber optics

Autores UNAM:
GABRIEL EDUARDO SANDOVAL ROMERO; FERNANDO VELAZQUEZ CARREON;
Autores externos:

Idioma:

Año de publicación:
2024
Palabras clave:

Fiber Bragg gratings; Fiber optic sensors; Fiber optics; Optical fiber fabrication; Fabry-Perot cavity; Fiber Bragg; Fiber-optics; In-fiber; In-fiber Bragg gratings; Measurement range; Sensitivity; Sensitivity to temperatures; Temperature changes; Temperature-sensing device; Fabry-Perot interferometers


Resumen:

In this work the practical comparison of the sensitivity to temperature changes of a sensor fabricated in fiber Bragg grating (FBG) immersed in a cross-sectional area of 45 mm2 polydimethylsiloxane (PDMS) which is 2 times larger than when the FBG is in conventional form is performed. For the test both fiber Bragg gratings have the same manufacturing characteristics and the comparison was carried out in a measurement range from 25° C to 50° C. On the other hand, the temperature sensitivity of the Fabry-Perot cavity formed by a PDMS droplet at the end of the SMF-28 fiber containing the fiber Bragg grating was 390 pm/° C. The conventional fiber optic temperature sensor with FBG had a lower hysteresis in the measurements while the PDMS immersed sensor hysteresis was 24 %, this is due to the higher sensitivity in the same measurement range. © 2024 IEEE.


Entidades citadas de la UNAM: