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Title: A study of the optical properties of photopolymer Fabry-Perot microcavities by a dual-wavelength fibre optic architecture
Authors: López Heredero, R.
Martín, S.
Fernández de Caleya, R. F.
Lobo Ribeiro, A. B.
Araújo, F. M.
Ferreira, L. A.
Santos, J. L.
Guerrero, H.
Keywords: Fibre Optic Architecture;Fabry Perot Microcavities;Photopolymer
Issue Date: 20-Jun-2002
Publisher: IOP Science Publishing
DOI: 10.1088/0957-0233/13/7/317
Published version:
Citation: Measurement Science and Technology 13(7): 1094(2002)
Abstract: We present a novel method to study the behaviour of the optical properties of photopolymer materials with temperature. The photopolymer is deposited on the tip of optical fibres by dip coating to fabricate low-finesse Fabry-Perot microcavities. The signal processing technique utilized to interrogate the cavity is based on the generation of two quadrature phase-shifted interferometric signals using two Bragg fibre gratings. This technique enables the determination of the values of the thermo-optical coefficient and the linear coefficient of thermal expansion of the photopolymer. The effectiveness of the processing technique is also exploited in the study of the dependence of the temperature sensitivity on the cavity thickness.
E-ISSN: 1361-6501
ISSN: 0957-0233
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