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
Demonstration of Intermodal Four-Wave Mixing by Femtosecond Pulses Centered at 1550 nm in an Air-Silica Photonic Crystal Fiber
Jinhui Yuan,Zhe Kang,Feng Li,Xianting Zhang,Xinzhu Sang,Guiyao Zhou,Qiang Wu,Binbin Yan,Kuiru Wang,Chongxiu Yu,Hwa Yaw Tam,P. K. A. Wai +11 more
TL;DR: In this paper, the authors demonstrated experimentally the intermodal four-wave mixing effect by launching femtosecond pulses centered at 1550 nm into deeply normal dispersion region in the fundamental guided-mode of an air-silica photonic crystal fiber with two zero dispersion wavelengths.
Proceedings ArticleDOI
Coherent widely tunable source of sub-picosecond pulses using all-normal dispersion fiber supercontinuum
L. E. Hooper,Peter J. Mosley,A.C. Muir,Fei Yu,Brian Joseph Mangan,William J. Wadsworth,Jonathan Knight,John M. Dudley +7 more
TL;DR: In this paper, the authors describe supercontinuum generation using photonic crystal fibres with all-normal group velocity dispersion profiles, pumped at 1064 nm and 800 nm wavelengths.
High Temperature Measurement Up to 1100 C Using a Polarization-Maintaining
Qiangzhou Rong,Qiao Xueguang,Tuan Guo,Hangzhou Yang,Yanying Du,Dan Su,Ruohui Wang,Hao Sun,Dingyi Feng,Manli Hu +9 more
TL;DR: In this article, a reflective fiber-optic interferometer for ultra-high temperature measurement is proposed and experimentally demonstrated, which consists of a short piece ofpolarization-maintaining photonic crystal fiber (PM-PCF) spliced with a lead-in single modefiber (SMF) without any offset.
Journal ArticleDOI
Research on one-dimensional photonic crystals with quantum theory approach
TL;DR: In this article, the spinor wave equation of free and non-free photon was proposed, and given the quantum transfer matrix, dispersion relation, quantum transmissivity and quantum reflectivity of one-dimensional photonic crystals with the quantum theory of photon, the results of quantum and classical are identical.
Proceedings ArticleDOI
Design of a dispersion flattened germanium doped silica modified hexagonal photonic crystal fiber with ultra low confinement losses
TL;DR: In this paper, a five-ringed modified hexagonal photonic crystal fiber (MH-PCF) having germanium (Ge) doped silica core can be designed with a low confinement loss at 1550 nm of the order 1026×10−14 dB/km with simultaneously nearly zero ultra-flattened chromatic dispersion of 0 ± 035 ps/nm/km in a wavelength range of 130 to 165 µm as well as large effective area in a wide range of wavelengths.
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.