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
Tunable highly birefringent bandgap-guiding liquid-crystal microstructured fibers
TL;DR: In this paper, a new type of nematic liquid-crystal infiltrated photonic bandgap-guiding fiber for single polarization or high-birefringence guidance is proposed.
Journal ArticleDOI
Photonic crystal fibres in biomedical investigations
Yu. S. Skibina,Valerii V Tuchin,Valerii V Tuchin,V.I. Beloglazov,G Shteinmaeer,I L Betge,R. Wedell,N. Langhoff +7 more
TL;DR: The state of the art in the field of design and study of photonic crystal fibres for biomedical applications is considered and some original results recently obtained by the authors are presented in this article, where optical properties of the fibres that offer prospects of their wide application as biological sensors, "labs-on-a-chip", and facilities of electromagnetic radiation control in a wide range of wavelengths aimed at designing novel biomedical instrumentation are considered
Journal ArticleDOI
Dy3+ ions doped oxy-fluoro boro tellurite glasses for the prospective optoelectronic device applications
TL;DR: In this paper, the authors used XRD, Raman, absorption, photoluminescence (PL) and PL decay spectral measurements to confirm the glassy nature and various functional groups present in the prepared glasses, and the oscillator strengths measured from the absorption spectral features were used to evaluate the Judd-Ofelt (J-O) intensity parameters.
Proceedings ArticleDOI
All fiber chirped-pulse amplification system based on compression in air-guiding photonic bandgap fiber
TL;DR: The experimental demonstration of an all fiber CPA system based on a step-index fiber stretcher and an air-guiding photonic crystal fiber compressor has the potential to be scaled to significantly higher peak powers.
Journal ArticleDOI
Optical frequency combs generated by four-wave mixing in optical fibers for astrophysical spectrometer calibration and metrology.
TL;DR: Optical frequency combs generated by multiple four-wave mixing in short and highly nonlinear optical fibers are proposed for use as high precision frequency markers, calibration of astrophysical spectrometers, broadband spectroscopy and metrology as mentioned in this paper.
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.