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
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Journal ArticleDOI
Enhanced X(3) interactions of unamplified femtosecond Cr:forsterite laser pulses in photonic-crystal fibers
A. N. Naumov,Andrei B. Fedotov,Aleksei M. Zheltikov,Vladislav V. Yakovlev,Leonid A. Melnikov,Beloglazov Valentin I,N. B. Skibina,A. V. Shcherbakov +7 more
TL;DR: In this article, a catalog of enhanced χ(3) processes observed in photonic-crystal fibers is presented for frequency conversion of low-energy femtosecond pulses with simultaneous chirp control and subsequent pulse compression.
Journal ArticleDOI
Neurophotonics: optical methods to study and control the brain
Lyubov V. Doronina-Amitonova,Ilya V. Fedotov,Andrei B. Fedotov,Konstantin V. Anokhin,Aleksei M. Zheltikov +4 more
Journal ArticleDOI
A new method to determine the absolute mode number of a mode-locked femtosecond-laser comb used for absolute optical frequency measurements
TL;DR: In this paper, a method to determine the absolute mode number in optical frequency measurements using mode-locked femtosecond (F2F) lasers is presented. But this method requires a prior knowledge of the frequency of the radiation in order to determine integral order of the comb component used.
Journal ArticleDOI
Time-resolved coherent anti-Stokes Raman scattering with a femtosecond soliton output of a photonic-crystal fiber.
TL;DR: Time-resolved coherent anti-Stokes Raman scattering (CARS) is demonstrated by using a frequency-tunable femtosecond soliton output of a silica photonic-crystal fiber as a Stokes field, suggesting a convenient fiber-optic format for the Stokes source in time-res resolved CARS.
Proceedings Article
Supercontinuum generation by higher-order mode excitation in a photonic crystal fiber
TL;DR: Higher-order-mode excitation experiments are interesting because the anomalous dispersion region is shifted towards smaller wavelengths and because the existence of a cut-off wavelength generates spectral broadening only on the blue side of the pump wavelength as mentioned in this paper.
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.