title: Demonstration of CO2-laser power delivery through chalcogenide-glass fiber with negative-curvature hollow core.
abstract: A technologically simple optical fiber cross-section structure with a negative-curvature hollow-core has been proposed for the delivery of the CO2 laser radiation. The structure was optimized numerically and then realized using Te20As30Se50 (TAS) chalcogenide glass. Guidance of the 10.6 µm СО2-laser radiation through this TAS-glass hollow-core fiber has been demonstrated. The loss at λ=10.6 μm was amounted ~11 dB/m. A resonance behavior of the fiber bend loss as a function of the bend radius has been revealed.
authors.affiliation: Fiber Optics Research Center RAS., Moscow, Russia. kaf@fo.gpi.ru
authors.forename: Alexey F
authors.initials: AF
authors.lastname: Kosolapov
authors.forename: Andrey D
authors.initials: AD
authors.lastname: Pryamikov
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Biriukov
authors.forename: Vladimir S
authors.initials: VS
authors.lastname: Shiryaev
authors.forename: Maxim S
authors.initials: MS
authors.lastname: Astapovich
authors.forename: Gennady E
authors.initials: GE
authors.lastname: Snopatin
authors.forename: Victor G
authors.initials: VG
authors.lastname: Plotnichenko
authors.forename: Mikhail F
authors.initials: MF
authors.lastname: Churbanov
authors.forename: Evgeny M
authors.initials: EM
authors.lastname: Dianov
mesh_terms: D018011:Chalcogens / Q000737:chemistry*; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D054020:Lasers, Gas; D016062:Porosity; D012542:Scattering, Radiation
chemical_list: D018011:Chalcogens