Vol. 49, Issue 2, pp. 241-248

Vol. 49 Issue 2 pp. 241-248

Tuning transfer function of fiber-optic Fabry–Pérot interferometer via introduction of birefringence in the cavity

Marzena Hirsch, Paweł Wierzba, Małgorzata Jędrzejewska-Szczerska

Keywords

fiber-optic interferometer, birefringence, fiber optic sensors, Fabry–Pérot interferometer

Abstract

The study investigates the impact of birefringence exhibited by the cavity material of a fiber-optic Fabry–Pérot interferometer on its transfer function. The theoretical approach to analyze the effect of birefringence in the cavity of a plane Fabry–Pérot interferometer is described. The case of high- and low-finesse interferometer is investigated. It is shown that introduction of a birefringent medium of optimized parameters can be used to increase the density of interference fringes in certain wavelength range – the feature can be used either for reduction of the cavity length in an interferometric sensor or operation with sources of narrower spectral characteristics.

Vol. 49
Issue 2
Article No: 05
pp. 241-248

0.49 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology