Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
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
Citations
More filters
Journal ArticleDOI
Supercontinuum generation in photonic crystal fibers made from highly nonlinear glasses
Anton Husakou,Joachim Herrmann +1 more
TL;DR: In this paper, the nonlinear propagation of femtosecond pulses and supercontinuum generation in photonic crystal fibers made from glasses with high nonlinear refractive indices are theoretically investigated without the use of the slowly varying envelope approximation.
Journal ArticleDOI
Spectral shaping of supercontinuum in a cobweb photonic-crystal fiber with sub-20-fs pulses
Alexander Apolonski,Boris Povazay,Angelika Unterhuber,Wolfgang Drexler,William J. Wadsworth,Jonathan Knight,Phillip St. J. Russell +6 more
TL;DR: In this article, a smooth, powerful, and stable supercontinuum in cobweb photonic-crystal fibers was generated by using 18-fs pulses with various chirp, power, and polarization states.
Journal ArticleDOI
Analysis of the interplay between soliton fission and modulation instability in supercontinuum generation
Ayhan Demircan,Uwe Bandelow +1 more
TL;DR: In this article, the authors investigate the generation mechanisms for ultra-wide spectra in nonlinear optical fibers and show that Soliton fission and modulation instability represent fundamental mechanisms for the generation process, and the interplay between these two effects leads to various characteristics of the resulting spectra, which are modified by the relative impact of modulation instability.
Journal ArticleDOI
Single metal nanoparticle absorption spectroscopy and optical characterization
TL;DR: In this article, the spectral and polarization dependencies of the absorption cross section of individual gold nanoparticles were measured using a far-field technique combining a spatial modulation microscope with a broadband light source.
Journal ArticleDOI
Tapered photonic crystal fibres: properties, characterisation and applications
H.C. Nguyen,Boris T. Kuhlmey,Eric Magi,Michael J. Steel,Peter Domachuk,Cameron L. C. Smith,Benjamin J. Eggleton +6 more
TL;DR: In this article, the authors describe the leakage of the core mode that leads to long-wavelength loss, influencing the operational bandwidth of these tapers, and explore these regimes as a potential basis for evanescent field sensing applications.
References
More filters
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.