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
A Boundary Integral Equation Method for Photonic Crystal Fibers
TL;DR: A boundary integral equation for the eigenmode of photonic crystal fibers is formulated and numerically solved using the Nyström method, which is very flexible to handle the fiber geometry, and therefore can be applied to photonics crystal fibers with novel refractive index profile and hole geometry.
Journal ArticleDOI
High sensitivity property of dual-core photonic crystal fiber temperature sensor based on surface plasmon resonance
TL;DR: In this article, a dual core photonic crystal fiber (DC-PCF) temperature sensor was designed and simulated in terms of wavelength sensitivity, which achieved flat wavelength sensitivity of 2.25nm/°C with a sensor resolution of 4.44×10−2 for y-polarized light.
Proceedings ArticleDOI
Methane detection system based on Wavelength Modulation Spectroscopy and hollow-core fibres
TL;DR: In this article, an optoelectronic system for detection and monitoring of methane has been developed and implemented, where the signal processing technique used in the proposed system is based on wavelength modulation spectroscopy (WMS).
Journal ArticleDOI
Fiber-optic probes for in vivo depth-resolved neuron-activity mapping.
Lyubov V. Doronina-Amitonova,Ilya V. Fedotov,Olga I. Ivashkina,Marina A. Zots,Andrei B. Fedotov,Konstantin V. Anokhin,Aleksei M. Zheltikov +6 more
TL;DR: Supercontinuum radiation produced by highly nonlinear photonic‐crystal fibers is employed to demonstrate a simultaneous multicolor interrogation of several biomarkers in a model aqueous solution system, thus suggesting the way toward a multiplex mapping of various types of neuron dynamics inside the living brain.
Patent
Holey fiber and method of manufacturing the same
TL;DR: A method of manufacturing a holey fiber includes forming a preform and drawing the preform as discussed by the authors, which includes arranging a core rod at the center of a jacket tube and arranging capillary tubes having hollows around the core rod inside the jacket tube.
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.