Popis anglicky
Single mode silica fibres are dominantly used for broadband communications and frequently terminate in devices located in office rooms (FTTO, FTTD). Acoustic signals in the office can be modulated onto an optical signals and subsequently demodulated for monitoring (eavesdropping). In the project, we are going to investigate an acoustic sensitivity of a special type of antiresonant silica optical fibres called negative curvature hollow core fibres. Due to low backscattering in these fibres we expect immunity to reflectometric sensor systems. We will optimise a process of drawing these fibres in order to produce relevant lengths of fibres in Czechia and evaluate several types of hollow core fibres to acoustic vibrations.

Klíčová slova anglicky
negative curvature hollow-core fiber, acoustics, optical sensors

VK01030114

čeština

Münster Petr, doc. Ing., Ph.D. - hlavní řešitel
Horváth Tomáš, doc. Ing., Ph.D. - spoluřešitel

Ústav telekomunikací
- odpovědné pracoviště (25.5.2022 - nezadáno)
Ústav telekomunikací
- příjemce (25.5.2022 - nezadáno)

DEJDAR, P.; ZÁVIŠKA, P.; TOMAŠOV, A.; HORVÁTH, T.; MÜNSTER, P. Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum. In Optical Sensing and Detection VIII. Proceedings of SPIE. 2024. ISSN: 0277-786X.
Detail

DEJDAR, P.; MOKRÝ, O.; MÜNSTER, P.; HORVÁTH, T.; SPURNÝ, V.; TOMAŠOV, A.; JASIM, A.; PODRAZKÝ, O.; BORODKIN, A.; HONZÁTKO, P. Negative Curvature Hollow-Core Photonic Crystal Fibers Sensitivity to Acoustic Vibration in the Audible Spectrum. In 2023 International Workshop on Fiber Optics on Access Networks (FOAN). IEEE, 2023. p. 8-11. ISBN: 979-8-3503-1936-1.
Detail

Odpovědnost: Münster Petr, doc. Ing., Ph.D.