Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
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TLDR
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.Abstract:
We demonstrate experimentally for what is to our knowledge the first time that air–silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths. We exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared, by propagating pulses of 100-fs duration and kilowatt peak powers through a microstructure fiber near the zero-dispersion wavelength.read more
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Journal ArticleDOI
Lateral access to the holes of photonic crystal fibers – selective filling and sensing applications
Cristiano M. B. Cordeiro,Eliane M. dos Santos,C. H. Brito Cruz,Christiano J. S. de Matos,Daniel S Ferreiira +4 more
TL;DR: A new, simple technique is demonstrated to laterally access the cladding holes of solid-core photonic crystal fibers (PCFs) or the central hole of hollow-core PCFs by blowing a hole through the fiber wall (using a fusion splicer and the application of pressure).
Особенности временных параметров трансмитрального диастолического потока при сердечно-сосудистой патологии
Е. А. Полунина,Д. С. Тарасочкина,И. В. Севостьянова,Л. П. Воронина,Г. Ю. Масляева,Б. И. Кантемирова +5 more
TL;DR: In this paper, a graphite-epoxy composite plate strain detection possibility by the fiber-optic acoustic emission sensor mounted on its surface was presented, which consisted in additional low-frequency phase-generated carrier implementation in the impulse Fabry-Perot interferometer and its amplitude evaluation.
Journal ArticleDOI
Resonance and scattering in microstructured optical fibers.
Thomas P. White,Ross C. McPhedran,C. Martijn de Sterke,Natalia M. Litchinitser,B.J. Eggleton +4 more
TL;DR: An investigation into the mechanism for guidance of microstructured optical fibers consisting of high-refractive-index cylinders embedded in a low-index background finds similarities between these results and those reported recently for two-dimensional antiresonant reflecting waveguides.
Journal ArticleDOI
An electronically tunable ultrafast laser source applied to fluorescence imaging and fluorescence lifetime imaging microscopy
Christopher Dunsby,Peter M. P. Lanigan,J. McGinty,Daniel S. Elson,Jose Requejo-Isidro,Ian Munro,Neil Galletly,Fiona E. McCann,Bebhinn Treanor,Björn Önfelt,Daniel M. Davis,Mark A. A. Neil,Paul M. W. French +12 more
TL;DR: In this paper, a white light continuum, generated by injecting femtosecond optical radiation into a micro-structured optical fiber, coupled with a simple prism-based tunable filter arrangement, is presented as a continuously electronically tunable (435-1150 nm) visible ultrafast light source in confocal, wide-field and FLIM systems.
Journal ArticleDOI
Optical clockwork with an offset-free difference-frequency comb: accuracy of sum- and difference-frequency generation.
TL;DR: The DFG comb possesses a vanishing carrier envelope offset frequency that permits the construction of a simple and thus potentially more stable optical clockwork and offers the possibility of extending the frequency comb into the infrared spectral region.
References
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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
Discovery of the soliton self-frequency shift.
TL;DR: The experimental discovery of a continuous shift in the optical frequency of a soliton pulse as it travels down the fiber is described, caused by a Raman self-pumping of the soliton.
Journal ArticleDOI
Self-phase-modulation in silica optical fibers
Roger H. Stolen,Chinlon Lin +1 more
TL;DR: In this paper, the authors report measurements of frequency broadening due to self-phase modulation (SPM) in optical fibers, using single-mode silica-core fibers and mode-locked argon-laser pulses.
Journal ArticleDOI
Group-velocity dispersion in photonic crystal fibers.
TL;DR: The dispersion properties of photonic crystal fibers are calculated by expression of the modal field as a sum of localized orthogonal functions to derive uniform dispersion values for single mode and double mode fibers.
Journal ArticleDOI
Slab-coupled waveguides
TL;DR: The slab-coupled waveguide is a multidielectric waveguide that includes such special cases as the single-material fiber, the rib waveguide, and the strip-loaded film guide as mentioned in this paper.