Abstract
Ultrafast laser pulses that are both tunable in wavelength and very short in duration are essential tools in fields ranging from biomedical imaging to ultrafast spectroscopy. While resonant dispersive-wave emission in gas-filled hollow-core fibers is a powerful technique for generating such pulses, it has traditionally required complex and expensive pump laser systems. In this work, we present a more compact and accessible alternative that combines gain-managed nonlinear amplification with resonant dispersive-wave emission. Our system produces sub-20 fs pulses tunable from 400 to beyond 700 nm, with energies up to 39 nJ and peak powers exceeding 2 MW, operating at a 4.8 MHz repetition rate. This compact and efficient laser source opens new avenues for deploying resonant dispersive-wave-based technologies for broader scientific and industrial applications.
| Original language | English |
|---|---|
| Pages (from-to) | 728-731 |
| Number of pages | 4 |
| Journal | Optica |
| Volume | 12 |
| Issue number | 6 |
| Early online date | 21 May 2025 |
| DOIs | |
| Publication status | Published - 20 Jun 2025 |
Data Availability Statement
Data may be obtained from the authors upon request.Acknowledgements
The authors thank M. Gebhardt, C. Brahms, W. J. Wadsworth, J. C. Knight, and R. R. Thomson for useful discussions.Funding
Engineering and Physical Sciences Research Council (EP/T020903/1); Royal Academy of Engineering (Chair in Emerging Technology); Institution of Engineering and Technology (IET A F Harvey Engineering Research Prize).
| Funders | Funder number |
|---|---|
| Engineering and Physical Sciences Research Council | EP/T020903/1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics