title: Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring.
abstract: An accurate design of an innovative fiber optic temperature sensor is developed. The sensor is based on a cascade of three microstructured optical fibers (MOFs). In the first one a suitable cascade of long period gratings is designed into the core. A single mode intermediate and a rare-earth activated Fabry-Perot optical cavity are the other two sensor MOF sections. An exhaustive theoretic feasibility investigation is performed employing computer code. The complete set-up for temperature monitoring can be obtained by utilizing only a low cost pump diode laser at 980 nm wavelength and a commercial optical power detector. The simulated sensitivity S = 315.1 μW/°C and the operation range ΔT = 100 °C is good enough for actual applications.
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. w.scarcia@live.it.
authors.forename: William
authors.initials: W
authors.lastname: Scarcia
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. giuseppe.palma@poliba.it.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Palma
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. christian.falconi@poliba.it.
authors.forename: Mario Christian
authors.initials: MC
authors.lastname: Falconi
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. francesco.deleonardis@poliba.it.
authors.forename: Francesco
authors.initials: F
authors.lastname: de Leonardis
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. vittorio.passaro@poliba.it.
authors.forename: Vittorio M N
authors.initials: VM
authors.lastname: Passaro
authors.affiliation: Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona n. 4, Bari 70125, Italy. francesco.prudenzano@poliba.it.
authors.forename: Francesco
authors.initials: F
authors.lastname: Prudenzano
keywords: electromagnetic modeling; electromagnetic noise immunity; optical fiber; temperature optical sensor