Sensing characteristics of hollow-core photonic crystal fibre modal interferometers

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

Aref, SH (Author) Other; Amezcua Correa, R (Author) Other; Carvalho, JP (Author) Other; Frazao, O (Author) Other; Caldas, P (Author) Other; Santos, JL (Author) FCUP; Araujo, FM (Author) Other; Latifi, H (Author) Other; Farahi, F (Author) Other; Ferreira, LA (Author) Other; Knight, JC (Author) Other

Conference proceedings International

Title: Proceedings of SPIE - The International Society for Optical Engineering

20th International Conference on Optical Fibre Sensors

Edinburgh, 5 October 2009 through 9 October 2009

Indexing

ISI Web of Knowledge

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Other information

Authenticus ID: P-007-RE5

DOI: 10.1117/12.834485

Abstract (EN): In this work, sensitivity to strain, temperature and curvature of a sensor relying on modal interferometry in hollow-core photonic crystal fibre is studied. The sensing structure is simply a piece of hollow-core fibre connected in both ends to standard single mode fibre. An interference pattern that is associated to the interference of the light that propagates in the hollow core fundamental mode with light that propagates in other modes is observed. The phase of this interference pattern changes with the measurand interaction, which is the basis for considering this structure for sensing. The phase recovery is performed using a white light interferometric technique. © 2009 SPIE.

Language: English

Type (Professor's evaluation): Scientific