Simultaneous measurement of strain and temperature using the FBG cladding modes based on a core misaligned splice

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Jesus, C (Author) Other; Jorge, PAS (Author) FCUP; Baptista, JM (Author) Other; Frazao, O (Author) FCUP

Conference proceedings International

Title: International Conference on Applications of Optics and Photonics

International Conference on Applications of Optics and Photonics

Braga, Portugal, 3 a 7 de Maio de 2011

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Other information

Authenticus ID: P-002-X8E

DOI: 10.1117/12.891422

Abstract (EN): A fiber optic FBG cladding modes based sensor, for simultaneous measurement of strain and temperature is presented. The FBG cladding modes are efficiently excited by the large core misalignment. This technique enables the possibility to readout simultaneously in reflection the cladding mode (lambda(cl)) and the core mode (lambda(co)). lambda(cl), lambda(co) depend on strain and temperature and show different sensibilities for each parameter, enabling their discrimination. The experimental result shows a good performance in terms of linearity and sensitivity.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4