Efficient 1.9-μm Raman generation in a hydrogen-filled hollow-core fibre

Gladyshev, Alexey V.; Kolyadin, A. N.; Косолапов, А. Ф.; Yatsenko, Yuri; Pryamikov, Andrey D.; Biryukov, A. S.; Bufetov, I. A.; Dianov, E. M.

doi:10.1070/qe2015v045n09abeh015881

Cited by 36 publications

(18 citation statements)

References 25 publications

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“…[18]) and on published data on the vibrational Raman linewidth and scattering cross-section of 1 H 2 [19,20]. This method of calculation was previously verified in [21,22], where g R ≈ 1 cm/GW was calculated for the 1.06 → 1.91 µm vibrational SRS in accordance with experimental data.…”

Section: Methodssupporting

confidence: 67%

Efficient 4.42 Μm Raman Laser Based on Hollow-Core Silica Fiber

Astapovich¹,

Kolyadin²,

Gladyshev³

et al. 2018

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In this paper we consider mid-infrared Raman lasers based on gas-filled hollowcore silica fibers and provide theoretical and experimental analysis of factors that limit the efficiency and output power of these lasers. As a result, we realized an efficient ns-pulsed 4.42 µm Raman laser based on an 1 H 2 -filled revolver silica fiber. Quantum efficiency as high as 36 % is achieved, and output average power as high as 250 mW is demonstrated. The possibilities of further improving the laser efficiency are discussed.

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Section: Methodssupporting

confidence: 67%

Efficient 4.42 Μm Raman Laser Based on Hollow-Core Silica Fiber

Astapovich¹,

Kolyadin²,

Gladyshev³

et al. 2018

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“…They have opened new prospects in science and many practical applications such as nonlinear fiber optics [2], fiber gas lasers [3][4][5], high power laser delivery [6,7], and many others. There are three main types of HCMFs, namely, hollow core photonic crystal fibers (HC PCFs), Kagome lattice hollow core fibers, and, invented not so long ago, negative curvature hollow core fibers (NCHCFs).…”

Section: Introductionmentioning

confidence: 99%

Strong Light Localization and a Peculiar Feature of Light Leakage in the Negative Curvature Hollow Core Fibers

Pryamikov

Alagashev

2017

Fibers

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Abstract: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.

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“…In the near-IR range, the photonic bandgap HCFs (data 6) have the lowest level of optical losses. At wavelengths 3-4.4 µm in the mid-IR both RFs (data 5,16,17) and "ice-cream-cone" shaped HCFs (data 8) show similar optical losses, which outperform the attenuation in pure silica glass (data 3). Optical loss in pure silica glass (F300, Heraeus, Hanau, Germany) (blue curves, 1-3) and the minimal optical loss obtained to date in different types of silica glass hollow-core fibers (HCFs).…”

Section: Rf With Various Cladding Structuresmentioning

confidence: 90%

“…In most studies, gas fiber lasers are constructed in a cavity-free, single-pass scheme [5,51,[53][54][55]. Due to strong localization of light in their core (MFD~5 ÷ 50 µm) along the entire length of the fiber (~1 ÷ 10 m) active gas-filled HCFs provide a single-pass gain that is sufficient for laser radiation build-up from quantum noise.…”

Section: Mid-infrared Raman Laser Based On Revolver Fibersmentioning

confidence: 99%

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Revolver Hollow Core Optical Fibers

Bufetov

Косолапов

Pryamikov

et al. 2018

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.

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Efficient 1.9-μm Raman generation in a hydrogen-filled hollow-core fibre

Cited by 36 publications

References 25 publications

Efficient 4.42 Μm Raman Laser Based on Hollow-Core Silica Fiber

Efficient 4.42 Μm Raman Laser Based on Hollow-Core Silica Fiber

Strong Light Localization and a Peculiar Feature of Light Leakage in the Negative Curvature Hollow Core Fibers

Revolver Hollow Core Optical Fibers

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