PatentDOI
Photonic crystal fibres
Philip St. J. Russell,Tim A. Birks,Jonathan Knight +2 more
- Vol. 424, Iss: 6950, pp 847-851
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TLDR
In this paper, the optical properties of a photonic crystal fiber including a plurality of longitudinal holes are altered by virtue of the change in cross-sectional area of holes in that region.Abstract:
A photonic crystal fibre including a plurality of longitudinal holes (220), in which at least some of the holes have a different cross-sectional area in a first region (200) of the fibre, that region having been heat-treated after fabrication of the fibre, from their cross-sectional area in a second region of the fibre (190), wherein the optical properties of the fibre in the heat-treated region (200) are altered by virture of the change in cross-sectional area of holes (230) in that region (200).read more
Citations
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Journal ArticleDOI
Fabrication of Photonic Optical Fibers from Soft Glasses
Enver F. Chillcce,E. Rodriguez,Oswaldo Luiz Alves,Carlos L. Cesar,Italo Odone Mazali,Luiz C. Barbosa +5 more
TL;DR: The stack-and-draw technique has been used to fabricate photonic crystal fibers (PCFs) from four different types of soft glass, namely, borosilicate, alkaline, lead, and tungsten-tellurite.
Journal ArticleDOI
Enhancement of guided-wave two-photon-excited luminescence response with a photonic-crystal fiber.
TL;DR: Biophotonic implications of this waveguide TPL-response enhancement include fiber-format solutions for online monitoring of drug delivery and drug activation, interrogation of neural activity, biosensing, endoscopy, and locally controlled singlet oxygen generation in photodynamic therapy.
Journal ArticleDOI
High-efficiency broadband photonic crystal fiber metalens with a large numerical aperture
TL;DR: In this article, the authors designed two PCF devices integrated with the metalens operating in the telecom region on the basis of numerical simulation, namely PCF divergent metalens (PCF-DM) and PCF focusing metalens(PCF)-FM, which can increase the numerical aperture of a PCF from less than 0.1 to 0.65 with coupling efficiencies as high as 90% and 85% through shaping the wave front of the incident light.
Journal ArticleDOI
Low bend loss photonic crystal fiber in Ga–Sb–S-based chalcogenide glass for nonlinear applications: design and analysis
TL;DR: In this paper, a photonic crystal fiber (PCF) structure in Ga-Sb-S-based chalcogenide glass has been designed for nonlinear applications.
Journal ArticleDOI
Design optimization of a highly sensitive spiral photonic crystal fiber for liquid and chemical sensing applications
R. Malavika,K. Prabu +1 more
TL;DR: In this article, a spiral shaped photonic crystal fiber (PCF) is proposed for liquid sensing applications, and the guiding properties of the proposed PCF are analyzed by varying different structural parameters for a wider wavelength range.
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.
Journal ArticleDOI
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
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
TL;DR: In this article, the authors demonstrate experimentally that air-silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths, and exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared.
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
TL;DR: 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.