Fabrication of an intrinsic fiber Fabry-Pérot interferometer involving simple in situ control of multilayer TiO2-SiO2 mirrors: material properties studies and cavity interrogation procedure

Ryad Bendoula; Bruno Wacogne; Christian Pieralli; Tijani Gharbi

doi:10.1117/1.2049273

1 September 2005 Fabrication of an intrinsic fiber Fabry-Pérot interferometer involving simple in situ control of multilayer TiO₂-SiO₂ mirrors: material properties studies and cavity interrogation procedure

Ryad Bendoula, Bruno Wacogne, Christian Pieralli, Tijani Gharbi

Author Affiliations +

Optical Engineering, Vol. 44, Issue 9, 095601 (September 2005). https://doi.org/10.1117/1.2049273

Abstract

We describe the fabrication of an intrinsic fiber Fabry-Pérot interferometer meant to be used in white light interferometry sensing experiments. It requires the elaboration of a cavity exhibiting a finesse of about 2, and therefore, cavity mirrors with a reflection coefficient of about 23%. The different steps involved in the fabrication of the cavity are addressed. We discuss the optical properties of the e-beam deposited TiO₂ and SiO₂ multilayer mirrors used for the fabrication of the cavity. In this part, a convenient method for measuring the complex refractive index of the materials is proposed, as well as an in situ monitoring technique used to accurately control the film properties. We next study the evolution of the mirror reflectivity with the splicing procedure, and we propose a modeling of the mirror composition after splicing. Then, the fabrication of a 20-mm-long Fabry-Pérot cavity exhibiting a visibility of 0.5 is presented. In this section, an efficient signal processing is proposed to reduce any measurement noise.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Ryad Bendoula, Bruno Wacogne, Christian Pieralli, and Tijani Gharbi "Fabrication of an intrinsic fiber Fabry-Pérot interferometer involving simple in situ control of multilayer TiO₂-SiO₂ mirrors: material properties studies and cavity interrogation procedure," Optical Engineering 44(9), 095601 (1 September 2005). https://doi.org/10.1117/1.2049273

Published: 1 September 2005

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