Soliton-plasma nonlinear dynamics in mid-IR gas-filled hollow-core fibers

Selim Habib, Christos Markos, Ole Bang, Morten Bache

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR at 3.0 mu m. We observe multiple soliton self-compression stages due to distinct stages where either the self-focusing or the self-defocusing nonlinearity dominates. Specifically, the parameters may be tuned so the competing plasma self-defocusing nonlinearity only dominates over the Kerr self-focusing nonlinearity around the soliton self-compression stage, where the increasing peak intensity on the leading pulse edge initiates a competing self-defocusing plasma nonlinearity acting nonlocally on the trailing edge, effectively preventing soliton formation there. As the plasma switches off after the self-compression stage, self-focusing dominates again, initiating another soliton self-compression stage in the trailing edge. This process is accompanied by supercontinuum generation spanning 1-4 mu m. We find that the spectral coherence drops as the secondary compression stage is initiated. (C) 2017 Optical Society of America
Original languageEnglish
JournalOptics Letters
Volume42
Issue number11
Pages (from-to)2232-2235
ISSN0146-9592
DOIs
Publication statusPublished - 2017

Cite this

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title = "Soliton-plasma nonlinear dynamics in mid-IR gas-filled hollow-core fibers",
abstract = "We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR at 3.0 mu m. We observe multiple soliton self-compression stages due to distinct stages where either the self-focusing or the self-defocusing nonlinearity dominates. Specifically, the parameters may be tuned so the competing plasma self-defocusing nonlinearity only dominates over the Kerr self-focusing nonlinearity around the soliton self-compression stage, where the increasing peak intensity on the leading pulse edge initiates a competing self-defocusing plasma nonlinearity acting nonlocally on the trailing edge, effectively preventing soliton formation there. As the plasma switches off after the self-compression stage, self-focusing dominates again, initiating another soliton self-compression stage in the trailing edge. This process is accompanied by supercontinuum generation spanning 1-4 mu m. We find that the spectral coherence drops as the secondary compression stage is initiated. (C) 2017 Optical Society of America",
author = "Selim Habib and Christos Markos and Ole Bang and Morten Bache",
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language = "English",
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journal = "Optics Letters",
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Soliton-plasma nonlinear dynamics in mid-IR gas-filled hollow-core fibers. / Habib, Selim; Markos, Christos; Bang, Ole; Bache, Morten.

In: Optics Letters, Vol. 42, No. 11, 2017, p. 2232-2235.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Soliton-plasma nonlinear dynamics in mid-IR gas-filled hollow-core fibers

AU - Habib, Selim

AU - Markos, Christos

AU - Bang, Ole

AU - Bache, Morten

PY - 2017

Y1 - 2017

N2 - We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR at 3.0 mu m. We observe multiple soliton self-compression stages due to distinct stages where either the self-focusing or the self-defocusing nonlinearity dominates. Specifically, the parameters may be tuned so the competing plasma self-defocusing nonlinearity only dominates over the Kerr self-focusing nonlinearity around the soliton self-compression stage, where the increasing peak intensity on the leading pulse edge initiates a competing self-defocusing plasma nonlinearity acting nonlocally on the trailing edge, effectively preventing soliton formation there. As the plasma switches off after the self-compression stage, self-focusing dominates again, initiating another soliton self-compression stage in the trailing edge. This process is accompanied by supercontinuum generation spanning 1-4 mu m. We find that the spectral coherence drops as the secondary compression stage is initiated. (C) 2017 Optical Society of America

AB - We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR at 3.0 mu m. We observe multiple soliton self-compression stages due to distinct stages where either the self-focusing or the self-defocusing nonlinearity dominates. Specifically, the parameters may be tuned so the competing plasma self-defocusing nonlinearity only dominates over the Kerr self-focusing nonlinearity around the soliton self-compression stage, where the increasing peak intensity on the leading pulse edge initiates a competing self-defocusing plasma nonlinearity acting nonlocally on the trailing edge, effectively preventing soliton formation there. As the plasma switches off after the self-compression stage, self-focusing dominates again, initiating another soliton self-compression stage in the trailing edge. This process is accompanied by supercontinuum generation spanning 1-4 mu m. We find that the spectral coherence drops as the secondary compression stage is initiated. (C) 2017 Optical Society of America

U2 - 10.1364/OL.42.002232

DO - 10.1364/OL.42.002232

M3 - Journal article

VL - 42

SP - 2232

EP - 2235

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 11

ER -