Helical plasma filaments from the self-channeling of intense femtosecond laser pulses in optical fibers

F. Mangini, M. Ferraro, M. Zitelli, A. Niang, T. Mansuryan, A. Tonello, V. Couderc, A. de Luca, S. A. Babin, F. Frezza, S. Wabnitz

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

We experimentally and numerically study the ignition of helical-shaped plasma filaments in standard optical fibers. Femtosecond pulses with megawatt peak power with proper off-axis and tilted coupling in the fiber core produce plasma skew rays. These last for distances as long as 1000 wavelengths thanks to a combination of linear waveguiding and the self-channeling effect. Peculiar is the case of graded-index multimode fibers; here the spatial self-imaging places constraints on the helix pitch. These results may find applications for fabricating fibers with helical-shaped core micro-structuration as well as for designing laser components and three-dimensional optical memories.

Язык оригиналаанглийский
Страницы (с-по)1-4
Число страниц4
ЖурналOptics Letters
Том47
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв. 2022

Предметные области OECD FOS+WOS

  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ
  • 1.03.SY ОПТИКА

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