Hollow-Core Fibres for Stable Trains of Wavelength-Tuneable Ultraviolet Pulses at 10 MHz Repetition Rate
Butryn M, Koura MA, Lippl M, Frosz MH, Joly NY, Tani F (2025)
Publication Type: Conference contribution
Publication year: 2025
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025
Event location: Munich, DEU
ISBN: 9798331512521
DOI: 10.1109/CLEO/EUROPE-EQEC65582.2025.11111490
Abstract
Nonlinear dynamics in gas-filled hollow-core fibres (HCFs) provide a practical route for versatile and efficient sources of ultrashort pulses in the ultraviolet (UV). In recent years, resonant dispersive wave (RDW) emission and four-wave-mixing in such a system have enabled the generation of few-femtosecond radiation covering the spectral range from 90 nm to the visible, with energies from 10s of nJ to 100s of µJ, average powers up to the W-level and conversion efficiencies up to 38% [1-4]. At low repetition rates (in the kHz range), such sources can be as stable as the pump laser but become increasingly unstable at higher repetition rates due to ionisation-induced long-lived effects [1]. Here, we show that by designing the system so as to operate at lower average powers and minimise ionisation of the fibre-filling gas, we can obtain stable trains of ultrashort pulses tuneable across the near ultraviolet at a repetition rate of 10 MHz and with average powers exceeding 100 mW.
Involved external institutions
Germany (DE)How to cite
APA:
Butryn, M., Koura, M.A., Lippl, M., Frosz, M.H., Joly, N.Y., & Tani, F. (2025). Hollow-Core Fibres for Stable Trains of Wavelength-Tuneable Ultraviolet Pulses at 10 MHz Repetition Rate. In 2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025. Munich, DEU: Institute of Electrical and Electronics Engineers Inc..
MLA:
Butryn, Martin, et al. "Hollow-Core Fibres for Stable Trains of Wavelength-Tuneable Ultraviolet Pulses at 10 MHz Repetition Rate." Proceedings of the 2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025, Munich, DEU Institute of Electrical and Electronics Engineers Inc., 2025.
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