Control of the strain sensitivity using a suspended core photonic crystal fiber sensing head

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Rota Rodrigo, S (Author) Other; Lopez Amo, M (Author) Other; Kobelke, J (Author) Other; Schuster, K (Author) Other; Santos, JL (Author) FCUP; Frazao, O (Author) FCUP

Conference proceedings International

Title: 23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS

23rd International Conference on Optical Fibre Sensors

Santander, SPAIN, JUN 02-06, 2014

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Other information

Authenticus ID: P-009-M9F

DOI: 10.1117/12.2055081

Abstract (EN): In this work a strain sensor based on a suspended core fiber is proposed. The sensor comprises a suspended core PCF between SMFs and is based on the multimode interference generated in these transitions. A strain sensitivity study for different sensing heads and stage separation lengths was carried out showing a sensitivity of -2.42 pm/¿¿ for the best case. Also the sensing head was tested for curvature and temperature, showing in the first case that it is insensitive to curvature effects, and secondly, that for small sensor lengths it was insensitive to temperature variations. © 2014 SPIE.

Language: English

Type (Professor's evaluation): Scientific