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In this paper, compression of high-power femtosecond pulses in Sagnac interferometers constructed of anti-resonant hollow core fibers (ARHCF) is investigated numerically and experimentally. By varying the types and pressures of gas filled in the hollow core fiber, the group velocity dispersion and the nonlinear pulse phase accumulation difference between clockwise and counterclockwise propagations could be tuned conveniently. In experiment, we demonstrate the pedestal suppression temporal pulse compression of 800 nm, 160 fs, 10 J pulses from a Ti: Sapphire laser at 1kHz to 20 fs with maximum compression efficiency of 25% nearly and compression ratio of eight.
Taoying Yu; Xuesong Liu; Andrey Pryamikov; Alexey F. Kosolapov; Zhongwei Fan. Femtosecond pulse compression with pedestal suppression in a Sagnac interferometer constructed of anti-resonant hollow core fiber. IEEE Photonics Journal 2021, PP, 1 -1.
AMA StyleTaoying Yu, Xuesong Liu, Andrey Pryamikov, Alexey F. Kosolapov, Zhongwei Fan. Femtosecond pulse compression with pedestal suppression in a Sagnac interferometer constructed of anti-resonant hollow core fiber. IEEE Photonics Journal. 2021; PP (99):1-1.
Chicago/Turabian StyleTaoying Yu; Xuesong Liu; Andrey Pryamikov; Alexey F. Kosolapov; Zhongwei Fan. 2021. "Femtosecond pulse compression with pedestal suppression in a Sagnac interferometer constructed of anti-resonant hollow core fiber." IEEE Photonics Journal PP, no. 99: 1-1.
In hydrodynamics, vortex generation upon the transition from smooth laminar flows to turbulence is generally accompanied by increased dissipation. However, vortices in the plane can provide transport barriers and decrease losses, as it happens in numerous geophysical, astrophysical flows and in tokamaks. Photon interactions with matter can affect light transport in ways resembling fluid dynamics. Here, we demonstrate significant impact of light vortex formation in micro-structured optical fibres on the energy dissipation. We show possibility of vortex formation in both solid core and hollow core fibres on the zero energy flow lines in the cladding. Through intensive numerical modelling using different independent approaches, we discovered a correlation between appearance of vortices and reduction of light leakage by three orders of magnitude, effectively improving wave guiding. This new effect potentially might have strong impact on numerous practical applications of micro-structured fibres. For instance, a strong light localization based on the same principle can also be achieved in the negative curvature hollow core fibres.
Andrey Pryamikov; Grigory Alagashev; Gregory Falkovich; Sergei Turitsyn. Light transport and vortex-supported wave-guiding in micro-structured optical fibres. Scientific Reports 2020, 10, 2507 -12.
AMA StyleAndrey Pryamikov, Grigory Alagashev, Gregory Falkovich, Sergei Turitsyn. Light transport and vortex-supported wave-guiding in micro-structured optical fibres. Scientific Reports. 2020; 10 (1):2507-12.
Chicago/Turabian StyleAndrey Pryamikov; Grigory Alagashev; Gregory Falkovich; Sergei Turitsyn. 2020. "Light transport and vortex-supported wave-guiding in micro-structured optical fibres." Scientific Reports 10, no. 1: 2507-12.
A depressed cladding waveguide composed of 36 parallel tracks is inscribed in high purity 70TeO2-22WO3-8Bi2O3 glass by femtosecond laser operating at 1030 nm. Sellmeier formula for refractive index of the investigated glass is obtained for the range of 1170 - 2350 nm. Module of the negative refractive index change in a track is found to increase with increasing wavelength in the range of 640 - 2000 nm. The waveguide shows single mode behavior in wavelength range of 1700 - 2100 nm with mode field diameter (MFD) of 20 μm. The propagation loss is predominantly due to scattering in the waveguide. Spectrum broadening as large as 503 nm was demonstrated in a 14 mm long waveguide pumped by femtosecond pulses at 1950 nm. In the low input pulse energy region the spectrum broadening is well described by generalized nonlinear Shrödinger equation (GNSE) taking into account Kerr and the Raman nonlinearities under assumption of constant MFD along the waveguide. Under higher energy pumping an extra broadening was observed that is attributed to the focusing effect of Kerr lens in the waveguide mode.
Andrey Gordeevich Okhrimchuk; Andrey D. Pryamikov; Alexey V. Gladyshev; Grigory K. Alagashev; Mikhail Petrovich Smayev; Vladislav V. Likhov; Vitaly V. Dorofeev; Sergei E. Motorin; Yuri P. Yatsenko. Direct Laser Written Waveguide in Tellurite Glass for Supercontinuum Generation in 2 μm Spectral Range. Journal of Lightwave Technology 2019, 38, 1492 -1500.
AMA StyleAndrey Gordeevich Okhrimchuk, Andrey D. Pryamikov, Alexey V. Gladyshev, Grigory K. Alagashev, Mikhail Petrovich Smayev, Vladislav V. Likhov, Vitaly V. Dorofeev, Sergei E. Motorin, Yuri P. Yatsenko. Direct Laser Written Waveguide in Tellurite Glass for Supercontinuum Generation in 2 μm Spectral Range. Journal of Lightwave Technology. 2019; 38 (6):1492-1500.
Chicago/Turabian StyleAndrey Gordeevich Okhrimchuk; Andrey D. Pryamikov; Alexey V. Gladyshev; Grigory K. Alagashev; Mikhail Petrovich Smayev; Vladislav V. Likhov; Vitaly V. Dorofeev; Sergei E. Motorin; Yuri P. Yatsenko. 2019. "Direct Laser Written Waveguide in Tellurite Glass for Supercontinuum Generation in 2 μm Spectral Range." Journal of Lightwave Technology 38, no. 6: 1492-1500.
Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding parameters of RFs are discussed. The optical properties and possible applications of RFs are reviewed. Special attention is paid to the mid-IR hydrogen Raman lasers that are based on RFs and generating in the wavelength region from 2.9 to 4.4 μm.
Igor A. Bufetov; Alexey F. Kosolapov; Andrey D. Pryamikov; Alexey V. Gladyshev; Anton N. Kolyadin; Alexander A. Krylov; Yury P. Yatsenko; Alexander S. Biriukov. Revolver Hollow Core Optical Fibers. Fibers 2018, 6, 39 .
AMA StyleIgor A. Bufetov, Alexey F. Kosolapov, Andrey D. Pryamikov, Alexey V. Gladyshev, Anton N. Kolyadin, Alexander A. Krylov, Yury P. Yatsenko, Alexander S. Biriukov. Revolver Hollow Core Optical Fibers. Fibers. 2018; 6 (2):39.
Chicago/Turabian StyleIgor A. Bufetov; Alexey F. Kosolapov; Andrey D. Pryamikov; Alexey V. Gladyshev; Anton N. Kolyadin; Alexander A. Krylov; Yury P. Yatsenko; Alexander S. Biriukov. 2018. "Revolver Hollow Core Optical Fibers." Fibers 6, no. 2: 39.
In this paper we would like to continue a discussion started in our previous work and devoted to the mechanism of light localization in hollow core microstructured fibers with a noncircular core-cladding boundary. It has been shown in many works that, for waveguide microstructures with different types of core-cladding boundary shape, the positions of the transmission bands’ edges can be predicted by applying the well-known anti–resonant reflecting optical waveguide (ARROW) model. At the same time, the ARROW model cannot explain the strong light localization and guiding at high material loss inside the transmission bands which are observed in negative curvature hollow core fibers, for example. In this paper we want to clarify our previous findings and consider the light localization process from another point of view, namely, by comparing the light leakage process in waveguide microstructures with different shapes of the core-cladding boundary. The results are discussed based on the ARROW model and a new approach associated with the consideration of spatial dispersion occurring under the interaction of the air core mode with the core-cladding boundary.
Andrey D. Pryamikov; Grigory K. Alagashev. Strong Light Localization and a Peculiar Feature of Light Leakage in the Negative Curvature Hollow Core Fibers. Fibers 2017, 5, 43 .
AMA StyleAndrey D. Pryamikov, Grigory K. Alagashev. Strong Light Localization and a Peculiar Feature of Light Leakage in the Negative Curvature Hollow Core Fibers. Fibers. 2017; 5 (4):43.
Chicago/Turabian StyleAndrey D. Pryamikov; Grigory K. Alagashev. 2017. "Strong Light Localization and a Peculiar Feature of Light Leakage in the Negative Curvature Hollow Core Fibers." Fibers 5, no. 4: 43.
In this paper we consider an interaction between the air core modes (ACMs) of hollow core waveguide microstructures and core-cladding boundary walls in various shapes. The analysis is based on well-established models such as the ARROW (anti-resonant reflecting optical waveguide) model and on the models proposed for the first time. In particular, we consider the dynamics of light localization in the polygonal core cladding boundary wall as dependant on the type of its discrete rotational symmetry. Based on our findings we analyze the mechanisms of light localization in the core-cladding boundary walls of negative curvature hollow core microstructured fibers (NC HCMFs).
A D Pryamikov; G K Alagashev; A F Kosolapov; A S Biriukov. Impact of core-cladding boundary shape on the waveguide properties of hollow core microstructured fibers. Laser Physics 2016, 26, 125104 .
AMA StyleA D Pryamikov, G K Alagashev, A F Kosolapov, A S Biriukov. Impact of core-cladding boundary shape on the waveguide properties of hollow core microstructured fibers. Laser Physics. 2016; 26 (12):125104.
Chicago/Turabian StyleA D Pryamikov; G K Alagashev; A F Kosolapov; A S Biriukov. 2016. "Impact of core-cladding boundary shape on the waveguide properties of hollow core microstructured fibers." Laser Physics 26, no. 12: 125104.
Properties of NCHCFs made from silica glass for light transmission in mid-IR are investigated, in particular, the influence of the cross-section geometry on optical properties and the core-cladding mode coupling due to bending.
Alexey F. Kosolapov; Andrey D. Pryamikov; Grigory K. Alagashev; Anton N. Kolyadin; Alexander S. Biriukov; Evgeny M. Dianov. Negative Curvature Hollow-Core Fibers (NCHCFs) for Mid-IR Applications. Advanced Photonics 2014, SoTu2B.3 .
AMA StyleAlexey F. Kosolapov, Andrey D. Pryamikov, Grigory K. Alagashev, Anton N. Kolyadin, Alexander S. Biriukov, Evgeny M. Dianov. Negative Curvature Hollow-Core Fibers (NCHCFs) for Mid-IR Applications. Advanced Photonics. 2014; ():SoTu2B.3.
Chicago/Turabian StyleAlexey F. Kosolapov; Andrey D. Pryamikov; Grigory K. Alagashev; Anton N. Kolyadin; Alexander S. Biriukov; Evgeny M. Dianov. 2014. "Negative Curvature Hollow-Core Fibers (NCHCFs) for Mid-IR Applications." Advanced Photonics , no. : SoTu2B.3.
In this paper we consider a process of plane wave scattering from a single dielectric cylinder at oblique incidence under which it is possible to excite long range cyclic Sommerfeld waves (CSWs) and consequently cyclic Sommerfeld resonances (CSRs) of different orders. It is shown that the CSRs are analogous to Wood's anomalies occurred under plane wave scattering from one dimensional (1D) metallic diffraction gratings. The conditions which are necessary for an effective excitation of CSWs and CSRs with high quality factors are analyzed.
Andrey D. Pryamikov; Alexander S. Biriukov. Wood's anomalies and excitation of cyclic Sommerfeld resonances under plane wave scattering from a single dielectric cylinder at oblique incidence of light. 2012, 1 .
AMA StyleAndrey D. Pryamikov, Alexander S. Biriukov. Wood's anomalies and excitation of cyclic Sommerfeld resonances under plane wave scattering from a single dielectric cylinder at oblique incidence of light. . 2012; ():1.
Chicago/Turabian StyleAndrey D. Pryamikov; Alexander S. Biriukov. 2012. "Wood's anomalies and excitation of cyclic Sommerfeld resonances under plane wave scattering from a single dielectric cylinder at oblique incidence of light." , no. : 1.
We present a numerical and experimental demonstration of a waveguide regime in a broad band spectral range for the hollow core microstructured optical fibers (HC MOFs) made of silica with a negative curvature of the core boundary. It is shown that HC MOFs with the cladding consisting only of one row of silica capillaries allows to guide light from the near to mid infrared despite of high material losses of silica in this spectral region. Such result can be obtained by a special arrangement of cladding capillaries which leads to a change in the sign of the core boundary curvature. The change in the sign of the core boundary curvature leads to a loss of simplicity of boundary conditions for core modes and to “localization” and limitation of their interaction with the cladding material in space. Such HC MOFs made of different materials can be potential candidates for solving problem of ultra high power transmission including transmission of CO and CO2 laser radiation.
Andrey D. Pryamikov; Alexander S. Biriukov; Alexey F. Kosolapov; Victor G. Plotnichenko; Sergei L. Semjonov; Evgeny M. Dianov. Demonstration of a waveguide regime for a silica hollow - core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 35 μm. Optics Express 2011, 19, 1441 -1448.
AMA StyleAndrey D. Pryamikov, Alexander S. Biriukov, Alexey F. Kosolapov, Victor G. Plotnichenko, Sergei L. Semjonov, Evgeny M. Dianov. Demonstration of a waveguide regime for a silica hollow - core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 35 μm. Optics Express. 2011; 19 (2):1441-1448.
Chicago/Turabian StyleAndrey D. Pryamikov; Alexander S. Biriukov; Alexey F. Kosolapov; Victor G. Plotnichenko; Sergei L. Semjonov; Evgeny M. Dianov. 2011. "Demonstration of a waveguide regime for a silica hollow - core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 35 μm." Optics Express 19, no. 2: 1441-1448.
Prospects of fabrication of solid-core photonic bandgap fibers with a large mode area (LMA) are discussed. Properties of solid-core photonic bandgap fibers with a small ratio of the cladding element diameter d to the distance Λ between neighboring cladding elements are studied. The range of fiber parameters at which the fiber is single-mode over the fundamental band gap is found.
Sergey L. Semjonov; Olga N. Egorova; Alexey F. Kosolapov; Andrey E. Levchenko; Vladimir Velmiskin; Andrey D. Pryamikov; Mikhail Y. Salganskiy; Vladimir F. Khopin; Mikhail V. Yashkov; Alexey N. Guryanov; Evgeny M. Dianov. LMA fibers based on two-dimensional solid-core photonic bandgap fiber design. Fiber Lasers VII: Technology, Systems, and Applications 2010, 7580, 758018 .
AMA StyleSergey L. Semjonov, Olga N. Egorova, Alexey F. Kosolapov, Andrey E. Levchenko, Vladimir Velmiskin, Andrey D. Pryamikov, Mikhail Y. Salganskiy, Vladimir F. Khopin, Mikhail V. Yashkov, Alexey N. Guryanov, Evgeny M. Dianov. LMA fibers based on two-dimensional solid-core photonic bandgap fiber design. Fiber Lasers VII: Technology, Systems, and Applications. 2010; 7580 ():758018.
Chicago/Turabian StyleSergey L. Semjonov; Olga N. Egorova; Alexey F. Kosolapov; Andrey E. Levchenko; Vladimir Velmiskin; Andrey D. Pryamikov; Mikhail Y. Salganskiy; Vladimir F. Khopin; Mikhail V. Yashkov; Alexey N. Guryanov; Evgeny M. Dianov. 2010. "LMA fibers based on two-dimensional solid-core photonic bandgap fiber design." Fiber Lasers VII: Technology, Systems, and Applications 7580, no. : 758018.