Passive polarization filtering in negative curvature hollow-core fibers

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buir.contributor.authorSiddiqui, Muhammad Zain
buir.contributor.authorOrdu, Mustafa
buir.contributor.orcidSiddiqui, Muhammad Zain|0009-0005-1920-8260
buir.contributor.orcidOrdu, Mustafa|0000-0003-4049-9283
dc.citation.epage126820Q-3en_US
dc.citation.spage126820Q-1
dc.citation.volumeNumber12682
dc.contributor.authorSiddiqui, Muhammad Zain
dc.contributor.authorAkosman, A. E.
dc.contributor.authorOrdu, Mustafa
dc.contributor.editorYin, Shizhuo
dc.contributor.editorGuo, Ruyon
dc.coverage.spatialSan Francisco, United States
dc.date.accessioned2024-03-08T08:40:44Z
dc.date.available2024-03-08T08:40:44Z
dc.date.issued2023-10-05
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.descriptionConference Name: Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVII 2023
dc.descriptionDate of Conference: 20 August 2023
dc.description.abstractA novel negative curvature hollow-core fiber (NCF) design is proposed capable of spectral and polarization filtering in the near-infrared region. The designed six-tube silica-based NCF contains nest elements in the form of suspended tubes radially anchored with a pole to the outer cladding in the vertical direction. In contrast, standard nested cladding elements without any suspension are used through the horizontal axis. This fiber configuration introduces an asymmetry in the core, which helps maintain the orthogonal X and Y polarization states in the fiber core. Pole anchors in vertically positioned tubes only give rise to the spectral filtering confinement loss profile for a vertically polarized state. Based on the geometrical optimization of the fiber, we achieved an improved birefringence on the order of 10-5 with filtered wavelength losses below 0.01 dB/km in the wavelength range of 1.4 µm to 1.7 µm. The operational bandwidth, polarization extinction ratio, filtered wavelengths, birefringence, and modulation depth loss can be tuned by optimizing the fiber parameters, including outer tube thickness, nest tube diameter, and pole dimensions. This proposed fiber design with selective transmission spectrums has untapped potential sensing capabilities in hollow-core negative curvature fibers. © 2023 SPIE. All rights reserved.
dc.identifier.eissn1996-756X
dc.identifier.isbn978-151066578-1
dc.identifier.issn0277-786X
dc.identifier.urihttps://hdl.handle.net/11693/114405
dc.language.isoen_US
dc.publisherSPIE - International Society for Optical Engineering
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.source.titleSPIE - International Society for Optical Engineering. Proceedings
dc.subjectBirefringence
dc.subjectInfrared devices
dc.subjectOptical fibers
dc.subjectPolarization
dc.subjectSilica
dc.subjectTubes (components)
dc.titlePassive polarization filtering in negative curvature hollow-core fibers
dc.typeConference Paper

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