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Showing 1 to 12 of 121 entries
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Graphene-clad tapered fiber: effective nonlinearity and propagation losses.

Optics letters

Gorbach AV, Marini A, Skryabin DV.
PMID: 24322228
Opt Lett. 2013 Dec 15;38(24):5244-7. doi: 10.1364/OL.38.005244.

We derive a pulse propagation equation for a graphene-clad optical fiber, treating the optical response of the graphene and nonlinearity of the dielectric fiber core as perturbations in asymptotic expansion of Maxwell equations. We analyze the effective nonlinear and...

Tuning resonant interaction of orthogonally polarized solitons and dispersive waves with the soliton power.

Optics express

Yulin AV, Gorjão LR, Driben R, Skryabin DV.
PMID: 24921797
Opt Express. 2014 May 05;22(9):10995-1000. doi: 10.1364/OE.22.010995.

We demonstrate that the relatively small power induced changes in the soliton wavenumber comparable with splitting of the effective indexes of the orthogonally polarized waveguide modes result in significant changes of the efficiency of the interaction between solitons and...

Effects of spatial inhomogeneities on the dynamics of cavity solitons in quadratically nonlinear media.

Physical review. E, Statistical, nonlinear, and soft matter physics

Fedorov S, Michaelis D, Peschel U, Etrich C, Skryabin DV, Rosanov N, Lederer F.
PMID: 11580465
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Sep;64(3):036610. doi: 10.1103/PhysRevE.64.036610. Epub 2001 Aug 29.

We study the dynamics of cavity solitons under the influence of spatial inhomogeneities and derive generalized equations of motions. For perturbations large compared to the soliton size we find the modulus of the soliton velocity to be proportional to...

Role of internal and continuum modes in modulational instability of quadratic solitons.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Skryabin DV.
PMID: 11970701
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Dec;60(6):7511-7. doi: 10.1103/physreve.60.7511.

The role of internal and continuum modes in the modulational instability of spatial quadratic solitons is examined by asymptotic and numerical analyses. It is shown that these modes generate novel spatially symmetric and asymmetric modulation instability branches, which underline...

Polarization dynamics of Bragg solitons.

Physical review. E, Statistical, nonlinear, and soft matter physics

Yulin AV, Skryabin DV, Firth WJ.
PMID: 12443345
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Oct;66(4):046603. doi: 10.1103/PhysRevE.66.046603. Epub 2002 Oct 09.

The families of vectorial Bragg solitons existing in transversely periodic media and their stability properties are studied in detail. Two qualitatively distinct types of polarization instabilities have been found. One leads to the significant radiation transfer into nonsolitonic forms,...

Slowing down of solitons by intrapulse Raman scattering in fibers with frequency cutoff.

Optics letters

Yulin AV, Skryabin DV.
PMID: 17041645
Opt Lett. 2006 Nov 01;31(21):3092-4. doi: 10.1364/ol.31.003092.

A method for transforming fast solitons into slow ones in bandgap fibers is proposed. The approach is based on the deceleration of the solitons by intrapulse Raman scattering, which can be achieved for fiber modes having a cutoff frequency....

Effective Kerr nonlinearity and two-color solitons in photonic band-gap fibers filled with a Raman active gas.

Physical review letters

Skryabin DV, Biancalana F, Bird DM, Benabid F.
PMID: 15524797
Phys Rev Lett. 2004 Oct 01;93(14):143907. doi: 10.1103/PhysRevLett.93.143907. Epub 2004 Sep 30.

We predict a strong effective Kerr nonlinearity in hollow-core photonic crystal fibers filled with a Raman active gas which exceeds the intrinsic Kerr nonlinearity by 2 orders of magnitude. Two-color bright-bright and dark-bright solitons supported by this nonlinearity are...

Resonant radiation and collapse of ultrashort pulses in planar waveguides.

Optics letters

Yulin AV, Skryabin DV, Russell PS.
PMID: 15789724
Opt Lett. 2005 Mar 01;30(5):525-7. doi: 10.1364/ol.30.000525.

We study the spatiotemporal dynamics of ultrashort pulses close to a point of zero group-velocity dispersion in planar waveguides with focusing nonlinearities. We find that the process of pulse collapse enhances the emission of so-called resonant radiation, providing an...

Polarization instability of solitons in photonic crystal fibers.

Optics express

Luan F, Yulin A, Knight JC, Skryabin DV.
PMID: 19516832
Opt Express. 2006 Jul 10;14(14):6550-6. doi: 10.1364/oe.14.006550.

We present experimental and numerical results demonstrating the existence of polarization instability of femtosecond solitons in small core photonic crystal fibers. The frequency of the solitons in our setup shifts rapidly with propagation along the dispersion curve due to...

Dispersion of nonlinearity and modulation instability in subwavelength semiconductor waveguides.

Optics express

Gorbach AV, Zhao X, Skryabin DV.
PMID: 21643190
Opt Express. 2011 May 09;19(10):9345-51. doi: 10.1364/OE.19.009345.

Tight confinement of light in subwavelength waveguides induces substantial dispersion of their nonlinear response. We demonstrate that this dispersion of nonlinearity can lead to the modulational instability in the regime of normal group velocity dispersion through the mechanism independent...

Bragg localized structures in a passive cavity with transverse modulation of the refractive index and the pump.

Optics express

Vladimirov AG, Skryabin DV, Kozyreff G, Mandel P, Tlidi M.
PMID: 19503310
Opt Express. 2006 Jan 09;14(1):1-6. doi: 10.1364/opex.14.000001.

We consider a passive optical cavity containing a photonic crystal and a purely absorptive two-level medium. The cavity is driven by a superposition of two coherent beams forming a periodically modulated pump. Using a coupled mode reduction and direct...

Supermode dispersion and waveguide-to-slot mode transition in arrays of silicon-on-insulator waveguides.

Optics letters

de Nobriga CE, Hobbs GD, Wadsworth WJ, Knight JC, Skryabin DV, Samarelli A, Sorel M, De La Rue RM.
PMID: 21124567
Opt Lett. 2010 Dec 01;35(23):3925-7. doi: 10.1364/OL.35.003925.

In this Letter, we report group index measurements of the supermodes of an array of two strongly coupled silicon-on-insulator waveguides. We observe coupling-induced dispersion that is greater than the material and waveguide dispersion of the individual waveguides. We demonstrate...

Showing 1 to 12 of 121 entries