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Nov 16, 2021;21 (22):

Fabrication of Microchannels in a Nodeless Antiresonant Hollow-Core Fiber Using Femtosecond Laser Pulses.

Paweł Kozioł, Piotr Jaworski, Karol Krzempek, Viktoria Hoppe, Grzegorz Dudzik, Fei Yu, Dakun Wu, Meisong Liao, Jonathan Knight, Krzysztof Abramski
Author Information
  1. Paweł Kozioł: Laser & Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystems, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland. ORCID
  2. Piotr Jaworski: Laser & Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystems, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland. ORCID
  3. Karol Krzempek: Laser & Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystems, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
  4. Viktoria Hoppe: Centre for Advanced Manufacturing Technologies (CAMT), Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland. ORCID
  5. Grzegorz Dudzik: Laser & Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystems, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
  6. Fei Yu: Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ORCID
  7. Dakun Wu: Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ORCID
  8. Meisong Liao: Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
  9. Jonathan Knight: Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK.
  10. Krzysztof Abramski: Laser & Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystems, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
PMID: 34833667 DOI: 10.3390/s21227591

Abstract

In this work, we present femtosecond laser cutting of microchannels in a nodeless antiresonant hollow-core fiber (ARHCF). Due to its ability to guide light in an air core combined with exceptional light-guiding properties, an ARHCF with a relatively non-complex structure has a high application potential for laser-based gas detection. To improve the gas flow into the fiber core, a series of 250 × 30 µm microchannels were reproducibly fabricated in the outer cladding of the ARHCF directly above the gap between the cladding capillaries using a femtosecond laser. The execution time of a single lateral cut for optimal process parameters was 7 min. It has been experimentally shown that the implementation of 25 microchannels introduces low transmission losses of 0.17 dB (<0.01 dB per single microchannel). The flexibility of the process in terms of the length of the performed microchannel was experimentally demonstrated, which confirms the usefulness of the proposed method. Furthermore, the performed experiments have indicated that the maximum bending radius for the ARHCF, with the processed 100 µm long microchannel that did not introduce its breaking, is 15 cm.

Keywords

antiresonant hollow core fibers femtosecond laser micromachining microchannel fabrication microstructured fibers

References

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Grants

  1. UMO-2018/30/Q/ST3/00809/National Science Centre (NCN)
  2. PPI/APM/2018/1/00031/U/001/Polish National Agency for Academic Exchange
  3. 61935002, 61961136003/National Natural Science Foundation of China
  4. ZDBS-LY- JSC020/Key Research Program of Frontier Sciences, Chinese Academy of Sciences
  5. POIR.04.04.00-00-434D/17-00/Foundation for Polish Science within the First TEAM program co-financed by the European Un-ion under the European Regional Development Fund
Journal Article

Word Cloud

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