7-Feb-2025
Deep ultraviolet dual-comb from a thin-disk laser
Ultrafast Science
Thin-disk single-cavity dual-comb lasers (TDSCs) offer a promising alternative to traditional dual-comb systems, simplifying the setup and enabling power scaling. Their shared resonator components ensure high coherence between the two mode-locked pulses, a key advantage over traditional approaches. While current dual-comb systems predominantly operate in the visible, near-infrared, and mid-infrared ranges, exploration of the ultraviolet (UV) and deep ultraviolet (DUV) regimes has been lacking. Recently, the research group led by Prof. Hongwen Xuan at the GBA branch of the Aerospace Information Research Institute, collaborating with Prof. Jinwei Zhang’s group in Huazhong University of Science and Technology, achieved the first DUV dual-comb using a high-power TDSC with frequency conversion. This work, demonstrating the application of a TDSC Yb:YAG laser for precise ranging, highlights the potential of this platform for future development of extreme ultraviolet (XUV) and terahertz dual-comb systems.