Ultraviolet to mid-infrared gas-filled anti-resonant hollow-core fiber lasers

Yazhou Wang, Abubakar I. Adamu, Md Selim Habib, Manoj K. Dasa, Christian R. Petersen, J. Enrique Antonio Lopez, Binbin Zhou, Peter Uhd Jepsen, Axel Schülzgen, Morten Bache, Rodrigo Amezcua Correa, Ole Bang, Christos Markos

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Abstract

We will present our recent works on fiber lasers enabled by noble and Raman-active gas-filled anti-resonant hollow-core fiber (ARHCF) technology. First, we will present the generation of supercontinuum (SC) spanning from 200 nm to 4 µm based on a Argon (Ar)-filled ARHCF pumped at 2.46 μm wavelength with 100 fs pulses and ~8 μJ pulse energy. Then we will discuss our recent work on stimulated Raman scattering (SRS) effect in a hydrogen (H2)-filled ARHCF, to achieve infrared Raman lasers. By employing the single-stage vibrational SRS effect, a 4.22 μm Raman laser line is directly converted from a linearly polarized 1.53 μm pump laser. A quantum efficiency as high as 74% was achieved, to yield 17.6 µJ pulse energy. The designed 4.22 μm wavelength is overlapped with the strongest CO2 absorption, therefore constituting a promising way for CO2 detection. In addition, we report a multi-wavelength Raman laser based on cascaded rotational SRS effect. Four Raman lines at 1683 nm, 1868 nm, 2099 nm, and 2394 nm are generated, with pulse energies as high as 18.25 µJ, 14.4 µJ, 14.1 µJ, and 8.2 µJ, respectively. The energy of these Raman lines can be controlled by tuning the H2 pressure from 1 bar to 20 bar.

Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsKyriacos Kalli, Alexis Mendez, Pavel Peterka
Volume11773
PublisherSPIE - International Society for Optical Engineering
Publication date2021
Article number1177308
ISBN (Electronic)9781510643802
DOIs
Publication statusPublished - 2021
EventMicro-structured and Specialty Optical Fibres VII 2021 - Virtual, Online, Virtual, Online, Czech Republic
Duration: 19 Apr 202123 Apr 2021

Conference

ConferenceMicro-structured and Specialty Optical Fibres VII 2021
LocationVirtual, Online
Country/TerritoryCzech Republic
CityVirtual, Online
Period19/04/202123/04/2021
SponsorSPIE
SeriesProceedings of SPIE - The International Society for Optical Engineering
Volume11773
ISSN0277-786X

Bibliographical note

Funding Information:
This work is supported by the Danmarks Frie Forskningsfond Hi-SPEC project (Grant No. 8022-00091B), Multi-BRAIN project funded by the Lundbeck Foundation (R276-2018-869), ECOMETA (Grant No. 6150-00030B) and US ARO (Grant No. W911NF-19-1-0426). Abubakar I. Adamu is now with Lumenisity Ltd, United Kingdom.

Publisher Copyright:
© 2021 SPIE.

Keywords

  • Anti-resonant hollow-core fiber
  • Raman laser
  • Supercontinuum

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