2025/02/03 by Mohammed Sabbah, R.J. Mears, Sabbah, Mohammed +11
Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Optical Sensing Technologies #FOS: Physical sciences #Laser-Plasma Interactions and Diagnostics #Optics (physics.optics)
paper · pdf · doi:10.48550/arxiv.2502.01322
openalex publication_date 2025/02/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 femtosecond pulses tunable from 400 nm 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.