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Alexey F. Kosolapov
Prokhorov General Physics Institute RAS, 104659 Moskva, Moskva, Russian Federation

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Journal article
Published: 23 March 2021 in IEEE Photonics Journal
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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.

ACS Style

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 Style

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 (99):1-1.

Chicago/Turabian Style

Taoying 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.

Journal article
Published: 25 July 2020 in Photonics
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Compact fiber-based sources generating optical pulses with a broadband spectrum in the mid-IR range are in demand for basic science and many applications. Laser systems producing tunable Raman solitons in special soft-glass fibers are of great interest. Here, we report experimental microstructured tellurite fibers and demonstrate by numerical simulation their applicability for nonlinear soliton conversion in the mid-infrared (-IR) range via soliton self-frequency shift. The fiber dispersion and nonlinearity are calculated for experimental geometry. It is shown numerically that there are two zero dispersion wavelengths for the core size of 2 μm and less. In such fibers, efficient Raman soliton tuning is attained up to a central wavelength of 4.8 μm using pump pulses at 2.8 μm.

ACS Style

Elena A. Anashkina; Vitaly V. Dorofeev; Sergey A. Skobelev; Alexey A. Balakin; Sergei E. Motorin; Alexey F. Kosolapov; Alexey V. Andrianov. Microstructured Fibers Based on Tellurite Glass for Nonlinear Conversion of Mid-IR Ultrashort Optical Pulses. Photonics 2020, 7, 51 .

AMA Style

Elena A. Anashkina, Vitaly V. Dorofeev, Sergey A. Skobelev, Alexey A. Balakin, Sergei E. Motorin, Alexey F. Kosolapov, Alexey V. Andrianov. Microstructured Fibers Based on Tellurite Glass for Nonlinear Conversion of Mid-IR Ultrashort Optical Pulses. Photonics. 2020; 7 (3):51.

Chicago/Turabian Style

Elena A. Anashkina; Vitaly V. Dorofeev; Sergey A. Skobelev; Alexey A. Balakin; Sergei E. Motorin; Alexey F. Kosolapov; Alexey V. Andrianov. 2020. "Microstructured Fibers Based on Tellurite Glass for Nonlinear Conversion of Mid-IR Ultrashort Optical Pulses." Photonics 7, no. 3: 51.

Review
Published: 07 June 2018 in Fibers
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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.

ACS Style

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 Style

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 (2):39.

Chicago/Turabian Style

Igor 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.

Communication
Published: 06 October 2017 in Sensors
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In this paper, an application of negative curvature hollow core fiber (NCHCF) in an all-fiber, multiphoton fluorescence sensor setup is presented. The dispersion parameter (D) of this fiber does not exceed the value of 5 ps/nm × km across the optical spectrum of (680–750) nm, making it well suited for the purpose of multiphoton excitation of biological fluorophores. Employing 1.5 m of this fiber in a simple, all-fiber sensor setup allows us to perform multiphoton experiments without any dispersion compensation methods. Multiphoton excitation of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD) with this fiber shows a 6- and 9-fold increase, respectively, in the total fluorescence signal collected when compared with the commercial solution in the form of a hollow-core photonic band gap fiber (HCPBF). To the author’s best knowledge, this is the first time an NCHCF was used in an optical-fiber sensor setup for multiphoton fluorescence experiments.

ACS Style

Maciej Andrzej Popenda; Hanna Izabela Stawska; Leszek Mateusz Mazur; Konrad Jakubowski; Alexey Kosolapov; Anton Kolyadin; Elżbieta Bereś-Pawlik. Application of Negative Curvature Hollow-Core Fiber in an Optical Fiber Sensor Setup for Multiphoton Spectroscopy. Sensors 2017, 17, 2278 .

AMA Style

Maciej Andrzej Popenda, Hanna Izabela Stawska, Leszek Mateusz Mazur, Konrad Jakubowski, Alexey Kosolapov, Anton Kolyadin, Elżbieta Bereś-Pawlik. Application of Negative Curvature Hollow-Core Fiber in an Optical Fiber Sensor Setup for Multiphoton Spectroscopy. Sensors. 2017; 17 (10):2278.

Chicago/Turabian Style

Maciej Andrzej Popenda; Hanna Izabela Stawska; Leszek Mateusz Mazur; Konrad Jakubowski; Alexey Kosolapov; Anton Kolyadin; Elżbieta Bereś-Pawlik. 2017. "Application of Negative Curvature Hollow-Core Fiber in an Optical Fiber Sensor Setup for Multiphoton Spectroscopy." Sensors 17, no. 10: 2278.

Journal article
Published: 01 June 2017 in Bulletin of the Lebedev Physics Institute
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Using one-step high-temperature polycondensation, soluble polyimide based on 9,9-bis-(4’-aminophenyl) fluorene and 3,3’, 4,4’-diphenyl oxide tetracarboxylic acid dianhydride is synthesized. Polyimide varnishes inN-methyl-2-pyrrolidone are prepared, and technological conditions of their deposition during fiber drawing are studied. A polymer coating thickness over 6 μm is achieved for a single application. It is demonstrated that the developed coating almost does not degrade for a long time at temperatures to 250 °C and completely protects the optical fiber surface from water penetration.

ACS Style

A. F. Kosolapov; Evgeny Plastinin; S. L. Semjonov; B. A. Bayminov; D. A. Sapozhnikov; D. D. Alekseeva; Ya. S. Vygodskii. Advanced polyimide varnish for optical fiber coating fabrication. Bulletin of the Lebedev Physics Institute 2017, 44, 159 -162.

AMA Style

A. F. Kosolapov, Evgeny Plastinin, S. L. Semjonov, B. A. Bayminov, D. A. Sapozhnikov, D. D. Alekseeva, Ya. S. Vygodskii. Advanced polyimide varnish for optical fiber coating fabrication. Bulletin of the Lebedev Physics Institute. 2017; 44 (6):159-162.

Chicago/Turabian Style

A. F. Kosolapov; Evgeny Plastinin; S. L. Semjonov; B. A. Bayminov; D. A. Sapozhnikov; D. D. Alekseeva; Ya. S. Vygodskii. 2017. "Advanced polyimide varnish for optical fiber coating fabrication." Bulletin of the Lebedev Physics Institute 44, no. 6: 159-162.

Journal article
Published: 01 December 2011 in Optics Express
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A technologically simple optical fiber cross-section structure with a negative-curvature hollow-core has been proposed for the delivery of the CO2 laser radiation. The structure was optimized numerically and then realized using Te20As30Se50 (TAS) chalcogenide glass. Guidance of the 10.6 µm СО2-laser radiation through this TAS-glass hollow-core fiber has been demonstrated. The loss at λ=10.6 μm was amounted ~11 dB/m. A resonance behavior of the fiber bend loss as a function of the bend radius has been revealed.

ACS Style

Alexey F. Kosolapov; Andrey D. Pryamikov; Alexander S. Biriukov; Vladimir Shiryaev; Maxim S. Astapovich; Gennady E. Snopatin; Victor G. Plotnichenko; Mikhail F. Churbanov; Evgeny M. Dianov. Demonstration of CO_2-laser power delivery through chalcogenide-glass fiber with negative-curvature hollow core. Optics Express 2011, 19, 25723 -25728.

AMA Style

Alexey F. Kosolapov, Andrey D. Pryamikov, Alexander S. Biriukov, Vladimir Shiryaev, Maxim S. Astapovich, Gennady E. Snopatin, Victor G. Plotnichenko, Mikhail F. Churbanov, Evgeny M. Dianov. Demonstration of CO_2-laser power delivery through chalcogenide-glass fiber with negative-curvature hollow core. Optics Express. 2011; 19 (25):25723-25728.

Chicago/Turabian Style

Alexey F. Kosolapov; Andrey D. Pryamikov; Alexander S. Biriukov; Vladimir Shiryaev; Maxim S. Astapovich; Gennady E. Snopatin; Victor G. Plotnichenko; Mikhail F. Churbanov; Evgeny M. Dianov. 2011. "Demonstration of CO_2-laser power delivery through chalcogenide-glass fiber with negative-curvature hollow core." Optics Express 19, no. 25: 25723-25728.

Journal article
Published: 25 May 2011 in Inorganic Materials
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By melting a mixture of high-purity oxides in a platinum crucible under flowing purified oxygen, we have prepared (TeO2)0.75(WO3)0.25 glass with a total content of 3d transition metals (Fe, Ni, Co, Cu, Mn, Cr, and V) within 0.4 ppm by weight, a concentration of scattering centers larger than 300 nm in size below 102 cm−3, and an absorption coefficient for OH groups (λ ∼ 3 μm) of 0.008 cm−1. The absorption loss in the glass has been determined to be 115 dB/km at λ = 1.06 μm, 86 dB/km at λ = 1.56 μm, and 100 dB/km at λ = 1.97 μm. From reported specific absorptions of impurities in fluorozirconate glasses and the impurity composition of the glass studied here, the absorption loss at λ ∼ 2 μm has been estimated at ≤100 dB/km. The glass has been drawn into a glass-polymer fiber, and the optical loss spectrum of the fiber has been measured.

ACS Style

A. N. Moiseev; V. V. Dorofeev; Alexey Chilyasov; V. G. Pimenov; T. V. Kotereva; I. A. Kraev; L. A. Ketkova; A. F. Kosolapov; V. G. Plotnichenko; V. V. Koltashev. Low-loss, high-purity (TeO2)0.75(WO3)0.25 glass. Inorganic Materials 2011, 47, 665 -669.

AMA Style

A. N. Moiseev, V. V. Dorofeev, Alexey Chilyasov, V. G. Pimenov, T. V. Kotereva, I. A. Kraev, L. A. Ketkova, A. F. Kosolapov, V. G. Plotnichenko, V. V. Koltashev. Low-loss, high-purity (TeO2)0.75(WO3)0.25 glass. Inorganic Materials. 2011; 47 (6):665-669.

Chicago/Turabian Style

A. N. Moiseev; V. V. Dorofeev; Alexey Chilyasov; V. G. Pimenov; T. V. Kotereva; I. A. Kraev; L. A. Ketkova; A. F. Kosolapov; V. G. Plotnichenko; V. V. Koltashev. 2011. "Low-loss, high-purity (TeO2)0.75(WO3)0.25 glass." Inorganic Materials 47, no. 6: 665-669.

Book chapter
Published: 23 July 2009 in Springer Series in Chemical Physics
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We report environmentally stable mode-locked Yb-doped fiber laser with dispersion compensation by index-guided solid-core photonic crystal fiber. The photonic crystal fiber and Faraday rotator in the cavity allow for robust 200-fs operation at 1 μm.

ACS Style

Samuli Kivistö; Robert Herda; Alexey F. Kosolapov; Andrei E. Levchenko; Sergei L. Semjonov; Evgueni M. Dianov; Oleg. G. Okhotnikov. Environmentally stable 200-fs Yb-doped fiber laser with dispersion compensation by photonic crystal fiber. Springer Series in Chemical Physics 2009, 756 -758.

AMA Style

Samuli Kivistö, Robert Herda, Alexey F. Kosolapov, Andrei E. Levchenko, Sergei L. Semjonov, Evgueni M. Dianov, Oleg. G. Okhotnikov. Environmentally stable 200-fs Yb-doped fiber laser with dispersion compensation by photonic crystal fiber. Springer Series in Chemical Physics. 2009; ():756-758.

Chicago/Turabian Style

Samuli Kivistö; Robert Herda; Alexey F. Kosolapov; Andrei E. Levchenko; Sergei L. Semjonov; Evgueni M. Dianov; Oleg. G. Okhotnikov. 2009. "Environmentally stable 200-fs Yb-doped fiber laser with dispersion compensation by photonic crystal fiber." Springer Series in Chemical Physics , no. : 756-758.