Method for manufacturing a fibre reflection interferometer based on a metal-dielectric diffraction structure
V. S. Terentyeva, V. A. Simonova, I. A. Lobachab, S. A. Babinab
a Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
b Novosibirsk State University
A new method for manufacturing a two-mirror reflection fibre interferometer in a single-mode fibre consisting of an input mirror with an asymmetric reflection coefficients and a highly reflective end mirror is presented and experimentally demonstrated. The input mirror is based on a metal-dielectric diffraction structure in the form of an aperture in an aluminium film and a dielectric multilayer coating, which provides asymmetry of the reflection coefficient. The method includes the calculation of the energy coefficients of the aluminium film with a hole, the determination of the optimal diameter of the hole, as well as making of the hole, the entrance mirror and the resonator with a short fibre base. A sample interferometer is demonstrated that has an increased (at least by two orders of magnitude) radiation resistance compared to variants based on a continuous metal film, namely, at least 100 mW of radiation in a single-mode SMF-28e fibre at a wavelength of 1550 nm.
reflection fibre interferometer, aluminium film with a hole, dielectric interference coating, diffraction.
PDF file (912 kB)
Quantum Electronics, 2019, 49:4, 399–403
V. S. Terentyev, V. A. Simonov, I. A. Lobach, S. A. Babin, “Method for manufacturing a fibre reflection interferometer based on a metal-dielectric diffraction structure”, Kvantovaya Elektronika, 49:4 (2019), 399–403 [Quantum Electron., 49:4 (2019), 399–403]
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