Hollow-core fibers for high power pulse delivery | Zendy

Mattia Michieletto | Zendy; Jens K. Lyngsø | Zendy; Christian Jakobsen | Zendy; Jesper Lægsgaard | Zendy; Ole Bang | Zendy; Thomas Tanggaard Alkeskjold | Zendy

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Hollow-core fibers for high power pulse delivery

Author(s) -

Mattia Michieletto,

Jens K. Lyngsø,

Christian Jakobsen,

Jesper Lægsgaard,

Ole Bang,

Thomas Tanggaard Alkeskjold

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.007103

Subject(s) - materials science , core (optical fiber) , optics , picosecond , optical fiber , photonic crystal fiber , fiber , hard clad silica optical fiber , all silica fiber , optoelectronics , fiber laser , graded index fiber , laser , fiber optic sensor , composite material , physics

We investigate hollow-core fibers for fiber delivery of high power ultrashort laser pulses. We use numerical techniques to design an anti-resonant hollow-core fiber having one layer of non-touching tubes to determine which structures offer the best optical properties for the delivery of high power picosecond pulses. A novel fiber with 7 tubes and a core of 30µm was fabricated and it is here described and characterized, showing remarkable low loss, low bend loss, and good mode quality. Its optical properties are compared to both a 10µm and a 18µm core diameter photonic band gap hollow-core fiber. The three fibers are characterized experimentally for the delivery of 22 picosecond pulses at 1032nm. We demonstrate flexible, diffraction limited beam delivery with output average powers in excess of 70W.

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