Journal ArticleDOI
Single-Mode Photonic Band Gap Guidance of Light in Air.
R.F. Cregan,Brian Joseph Mangan,Jonathan Knight,Tim A. Birks,P. St. J. Russell,Peter John Roberts,Douglas C. Allan +6 more
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The confinement of light within a hollow core (a large air hole) in a silica-air photonic crystal fiber is demonstrated and certain wavelength bands are confined and guided down the fiber.Abstract:
The confinement of light within a hollow core (a large air hole) in a silica-air photonic crystal fiber is demonstrated Only certain wavelength bands are confined and guided down the fiber, each band corresponding to the presence of a full two-dimensional band gap in the photonic crystal cladding Single-mode vacuum waveguides have a multitude of potential applications from ultrahigh-power transmission to the guiding of cold atomsread more
Citations
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Journal ArticleDOI
Hollow core optical fibres with comparable attenuation to silica fibres between 600 and 1100 nm.
Hesham Sakr,Yong Chen,Gregory T. Jasion,Thomas D. Bradley,John R. Hayes,Hans Christian Hansen Mulvad,Ian A. Davidson,Eric Numkam Fokoua,Francesco Poletti +8 more
TL;DR: Hollow core fibres of nested antiresonant design are reported, with losses comparable or lower than achievable in solid glass fibres around technologically relevant wavelengths of 660, 850, and 1060 nm, which offers the potential for advances in quantum communications, data transmission, and laser power delivery.
Journal ArticleDOI
Mid-infrared gas sensing using a photonic bandgap fiber
N. Gayraud,Ukasz W Kornaszewski,James M. Stone,Jonathan Knight,Derryck T. Reid,Duncan Paul Hand,William N. MacPherson +6 more
TL;DR: Methane sensing based on Fourier transform infrared spectroscopy using a hollow-core photonic bandgap fiber guiding in the mid-infrared and idler pulses from a femtosecond optical parametric oscillator is demonstrated.
Journal ArticleDOI
Adaptive curvilinear coordinates in a plane-wave solution of Maxwell’s equations in photonic crystals
TL;DR: In this paper, a method to compute the modes propagating at a given frequency in dielectric systems that are periodic in two dimensions and uniform in the third dimension, using a plane-wave basis expressed in a system of generalized curvilinear coordinates is described.
Patent
Systems, processes and computer-accessible medium for providing hybrid flourescence and optical coherence tomography imaging
TL;DR: In this paper, a method for obtaining information regarding at least one portion of a biological structure is presented. But the method is not suitable for the detection of biological structures, since it requires the information associated with the second fluorescent radiation, and the image of the portion may not be associated with more than one lumen.
Journal ArticleDOI
Photonic crystal fiber for dispersion compensation
TL;DR: The dispersion and mode characteristics in a dual-concentric-core photonic crystal fiber, based on pure silica, are simulated by the multipole method and shows that even if there are some changes in the structure parameters during fabrication, these fibers can still maintain a fine dispersion-compensating property.
References
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Journal ArticleDOI
All-silica single-mode optical fiber with photonic crystal cladding
TL;DR: The fabrication of a new type of optical waveguide: the photonic crystal fiber that supports a single robust low-loss guided mode over a very broad spectral range of at least 458-1550 nm.
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Endlessly single-mode photonic crystal fiber.
TL;DR: An effective-index model confirms that an all-silica optical fiber made by embedding a central core in a two-dimensional photonic crystal with a micrometer-spaced hexagonal array of air holes can be single mode for any wavelength.
Journal ArticleDOI
Hollow metallic and dielectric waveguides for long distance optical transmission and lasers
TL;DR: In this paper, the field configurations and propagation constants of a hollow circular waveguide made of dielectric material or metal for application as an optical waveguide were determined and the increase of attenuation due to curvature of the axis was also determined.
Journal ArticleDOI
Photonic Band Gap Guidance in Optical Fibers
TL;DR: A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal.
Journal ArticleDOI
Full 2-D photonic bandgaps in silica/air structures
TL;DR: In this paper, full 2D photonic bandgaps are demonstrated for all polarisations in structures with refractive index contrast as small as that of silica and air, and a new type of optical fiber based on these structures is proposed.