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
Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics.
Stephanos Yerolatsitis,Fei Yu,Sarah McAughtrie,Michael G. Tanner,Michael G. Tanner,Holly Fleming,James M. Stone,James M. Stone,Colin Campbell,Tim A. Birks,Jonathan Knight +10 more
TL;DR: The use of single novel hollow‐core negative‐curvature fibres for Raman and surface‐enhanced Raman spectroscopy (SERS) sensing using no distal optics and consequent small probe diameter enable applications that were not previously possible.
Journal ArticleDOI
All-silica photonic bandgap fibre with zero dispersion and a large mode area at 730 nm
TL;DR: In this article, a photonic bandgap fiber with a pure silica background and a triangular lattice of Ge-doped high-index rods was designed to guide a single, well-confined mode.
Journal ArticleDOI
Proposed Square Lattice Photonic Crystal Fiber for Extremely High Nonlinearity, Birefringence and Ultra-High Negative Dispersion Compensation
Md. Ibadul Islam,Kawsar Ahmed,Shuvo Sen,Bikash Kumar Paul,Md. Shadidul Islam,Sawrab Chowdhury,Md. Rabiul Hasan,Muhammad Shahin Uddin,Sayed Asaduzzaman,Ali Newaz Bahar +9 more
TL;DR: In this paper, a photonic crystal fiber in square lattice architecture is numerically investigated and proposed for broadband dispersion compensation in optical transmission system, which achieves an ultra-high negative dispersion of about −571.7 to −1889.7 (ps/nm) in the wavelength range of 1340 nm to 1640 nm.
Journal ArticleDOI
Monolithic fiber chirped pulse amplification system for millijoule femtosecond pulse generation at 1.55 µm
Xiang Peng,Kyungbum Kim,Michael Mielke,Stephen Jennings,Gordon Masor,Dave Stohl,Arturo Chavez-Pirson,Dan T. Nguyen,Dan Rhonehouse,Jie Zong,Dmitriy Churin,N. Peyghambarian +11 more
TL;DR: A monolithic fiber chirped pulse amplification system that generates sub-500 fs pulses with 913 µJ pulse energy and 4.4 W average power at 1.55 µm wavelength has recently been demonstrated.
Journal ArticleDOI
Photonic crystals and metamaterials
TL;DR: Lourtioz et al. as discussed by the authors reviewed some important advances on photonic crystals and metamaterials, as these two topics received a particular attention during the “Nanosciences et Radioelectricite” workshop organized by CNFRS in Paris on the 20th and 21st of March 2007.
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.