title: Low loss silica hollow core fibers for 3-4 μm spectral region.
abstract: We describe a silica hollow-core fiber for mid-infrared transmission with a minimum attenuation of 34 dB/km at 3050 nm wavelength. The design is based on the use of a negative curvature core wall. Similar fiber designed for longer wavelengths has a transmission band extending beyond 4 µm.
authors.affiliation: Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Claverton Down, Bath, UK. fy230@bath.ac.uk
authors.forename: Fei
authors.initials: F
authors.lastname: Yu
authors.forename: William J
authors.initials: WJ
authors.lastname: Wadsworth
authors.forename: Jonathan C
authors.initials: JC
authors.lastname: Knight
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D005336:Fiber Optic Technology; D008027:Light; D008855:Microscopy, Electron, Scanning / Q000379:methods*; D015233:Models, Statistical; D055100:Optical Fibers; D055095:Optics and Photonics; D012822:Silicon Dioxide / Q000737:chemistry*; D013055:Spectrophotometry, Infrared / Q000379:methods
chemical_list: D012822:Silicon Dioxide