Daniel Talán Echarri, Yves Bellouard, Ernesto Gribaudo, Lisa Jutta Ackermann, Benedikt Hermann
We demonstrate ultra-low-loss femtosecond laser-written waveguides in fused silica using 450 fs ultraviolet pulses from a frequency-tripled ytterbium laser. This favorable regime only appears at a low pulse density, enabling a two orders of magnitude faste ...
Optica Publishing Group2025