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
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Suppression of transverse modes in bandgap microstructure optical fibers
TL;DR: In this paper, the perturbation region is configured so that the fundamental mode of the cladding region is resonant with a higher order odes (HOM) of the core region.
Journal ArticleDOI
Quasi-phase-matched high harmonic generation in hollow core photonic crystal fibers
TL;DR: The feasibility of phase-matching this process by modulating the phase of ionization electrons using a counter-propagating laser field is shown, and harmonics with energies of several hundreds of eV can be produced using fs-laser pump pulses of microJ energy.
Journal ArticleDOI
Asymmetric spectral broadening and temporal evolution of cross-phase-modulated third-harmonic pulses
A. N. Naumov,Alexei M. Zheltikov +1 more
TL;DR: The phase mismatch between the pump and third-harmonic pulses is shown to vary from the leading edge of the pump pulse to its trailing edge, resulting in an asymmetric spectral broadening of the third harmonic.
Journal ArticleDOI
Supercontinuum generation in photonic-molecule modes of microstructure fibers
Andrei B. Fedotov,A. N. Naumov,Ignac Bugar,Dusan Chorvat,D. A. Sidorov-Biryukov,Aleksei M. Zheltikov +5 more
TL;DR: In this article, supercontinuum generation in microstructure fibers with a core in the form of a cyclic polyatomic photonic molecule is studied, which can guide the light through total internal reflection, providing a very high light confinement degree due to the large refractive index step.
Journal ArticleDOI
Design of dispersion-engineered As2Se3 channel waveguide for mid-infrared region supercontinuum generation
TL;DR: In this article, a 20mm-long integrated photonics compatible highly nonlinear As2Se3 channel waveguide, which exhibited wider as well as lower magnitude and nearly flat anomalous dispersion region, designed and modeled by employing GeAsSe glass for its upper and lower claddings.
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.