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Flexible single-mode delivery of a high-power 2 μm pulsed laser using an antiresonant hollow-core fiber

  • Elizabeth Lee
  • , Jiaqi Luo
  • , Biao Sun
  • , Vincent Ramalingam
  • , Ying Zhang
  • , Qijie Wang
  • , Fei Yu
  • , Xia Yu
  • Singapore Institute of Manufacturing Technology
  • Nanyang Technological University

Research output: Contribution to journalArticlepeer-review

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Abstract

We demonstrate flexible single-mode transmission of a high average power 2 μm nanosecond pulse using antiresonant hollow-core fibers (AR-HCFs). 39.1 W average power is delivered using a coiled 1.7 m AR-HCF, which is designed for single-mode guidance and good higher-order mode suppression. The effect of bending on the fiber output power and beam profile is also investigated. The Gaussian-like output beam profile is maintained up to a 7.5 cm bending radius. This is the highest average power delivered by a flexible long HCF in this wavelength without the need for an enclosed controlled environment, to the best of our knowledge.

Original languageEnglish
Pages (from-to)2732-2735
Number of pages4
JournalOptics Letters
Volume43
Issue number12
DOIs
Publication statusPublished - 15 Jun 2018

Funding

Funding. Agency for Science, Technology and Research (A*STAR), Singapore (1426500052); UK Engineering and Physical Sciences Research Council (EPSRC) (EP/ M025381/1).

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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