Siddiqui, Muhammad ZainAkosman, Ahmet E.Ordu, Mustafa2025-02-192025-02-192024-08-01https://hdl.handle.net/11693/116426Conference Name: Advanced Photonics Congress 2024: Bragg Gratings, Photosensitivity, and Poling in Glass WaveguidesDate of Conference: 28 July - 1 August 2024A novel negative curvature hollow-core fiber is numerically designed capable of filtering specific frequencies. The six-tube silica fiber strongly favors fundamental mode transmission over higher order modes despite uneven positioning of cladding elements.EnglishCC BY 4.0 DEED (Attribution 4.0 International)https://creativecommons.org/licenses/by/4.0/Frequency-selectiveFundamental modesHigh order modeHollow core fiberMode analysisNegative curvatureSilica fibersSpecific frequenciesHigher order mode analysis in frequency selective negative curvature fibersConference Paper10.1364/BGPP.2024.JTu1A.29