Asymptotically Single-Mode Hybrid Fiber for Dispersion Management Near 1 μm

Aleshkina, Svetlana S.; Yashkov, Mikhail V.; Бубнов, М. М.; Guryanov, A. N.; Likhachev, Mikhail E.

doi:10.1109/jstqe.2017.2777100

Cited by 11 publications

(16 citation statements)

References 14 publications

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“…The M-type fiber can be considered as a leaky waveguide with the anti-resonant structure, in which the core mode is leaky with a complex effective refractive index, similar to the case of the hollow-core fiber [17,28]. Compared to the M-type fiber, the core mode of the DCF is guided by both total internal reflection and anti-resonance guidance, and its core mode has a real effective refractive index [27,[29][30][31][32]. The DCFs have been studied for various applications including pulse compression in fiber lasers [29][30][31], generation of supercontinuum [27] and top-hat beams [32], due to their manageable waveguide dispersion and exceptional modal field changes.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the M-type fiber, the core mode of the DCF is guided by both total internal reflection and anti-resonance guidance, and its core mode has a real effective refractive index [27,[29][30][31][32]. The DCFs have been studied for various applications including pulse compression in fiber lasers [29][30][31], generation of supercontinuum [27] and top-hat beams [32], due to their manageable waveguide dispersion and exceptional modal field changes. However, these studies in regard to DCFs [27,[29][30][31][32] were limited to the analysis of a few modes in the strong dispersion region.…”

Section: Introductionmentioning

confidence: 99%

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Anti-resonance, inhibited coupling and mode transition in depressed core fibers

Lian

Farrell

et al. 2020

Opt. Express

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The depressed core fiber (DCF), consisting of a low-index solid core, a high-index cladding and air surrounding, is in effect a bridge between the conventional step-index fiber and the tube-type hollow-core fiber from the point of view of the index profile. In this paper the dispersion diagram of a DCF is obtained by solving the full-vector eigenvalue equations and analyzed using the theory of anti-resonant and the inhibited coupling mechanisms. While light propagation in tube-type hollow-core fibers is commonly described by the symmetric planar waveguide model, here we propose an asymmetric planar waveguide for the DCFs in an anti-resonant reflecting optical waveguide (ARROW) model. It is found that the antiresonant core modes in the DCFs have real effective indices, compared to the anti-resonant core modes with complex effective indices in the tube-type hollow-core fibers. The antiresonant core modes in the DCFs exhibit similar qualitative and quantitative behavior as the core modes in the conventional step-index fibers. The full-vector analytical results for the simple-structure DCFs can contribute to a better understanding of the anti-resonant and inhibited coupling guidance mechanisms in other complex inversed index fibers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anti-resonance, inhibited coupling and mode transition in depressed core fibers

Lian

Farrell

et al. 2020

Opt. Express

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“…Более того, такая мода может иметь аномальную в области 1 мкм дисперсию. Величина и знак наклона дисперсии гибридной моды могут варьироваться в зависимости от параметров сердцевины и оптически более плотных кольцевых слоев [4]. Дисперсия в области 1,064 мкм может достигать величины более 100 псек/(нм км).…”

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“…Кроме того, возбуждение этой моды может быть осуществлено путем обычной сварки со световодом стандартного типа с согласующимся размером модового пятна. При этом величина диаметра поля моды гибридного световода, в отличие от большинства существующих конструкций световодов с аномальной в области 1 мкм дисперсией, может варьироваться в зависимости от поставленной задачи в диапазоне от нескольким микрон до 13 мкм и более [4].…”

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“…Вследствие этого, для подавления нежелательных мод световода и установления асимптотически одномодового режима распространения были предложены две методики. Первая основана на принципе поглощения нежелательных мод гибридного световода и состоит во внесении в положение минимума интенсивности рабочей моды сильно поглощающего слоя, который оказывает воздействие только на те моды, интенсивность которых отлична от нуля в области слоя [4]. Вторая методика состоит в селективном усилении рабочей моды световода.…”

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Гибридные Световоды Для Компенсации Дисперсии В Области 1 Мкм

Алешкина¹,

Яшков²,

Салганский³

et al. 2018

8-Й Российский Семинар По Волоконным Лазерам : Материалы Семинара

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Exploiting dispersion of higher-order-modes using M-type fiber for application in mid-infrared supercontinuum generation

Jain

Markos

Benson

et al. 2019

Sci Rep

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M-type fibers have the exceptional property that the higher-order LP 0n modes are core-confined and easily excited, while the LP 01 and other modes are confined to a high-index ring surrounding the core, so they are not easily excited. This has profound consequences for mid-infrared supercontinuum sources, where the high zero-dispersion wavelength of chalcogenide and ZBLAN fibers means that exotic pump sources have so far been necessary. We show here that in chalcogenide and ZBLAN M-type fibers the lower ZDW of the core-confined higher-order LP 02 mode can be in the range of 2 to 3 µm (around 1.55 µm), while the fiber still has a large core diameter and thus supports high average power. This will allow established pump laser technology to be used in future high-power mid-infrared supercontinuum sources.

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Asymptotically Single-Mode Hybrid Fiber for Dispersion Management Near 1 μm

Cited by 11 publications

References 14 publications

Anti-resonance, inhibited coupling and mode transition in depressed core fibers

Anti-resonance, inhibited coupling and mode transition in depressed core fibers

Гибридные Световоды Для Компенсации Дисперсии В Области 1 Мкм

Exploiting dispersion of higher-order-modes using M-type fiber for application in mid-infrared supercontinuum generation

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