Kerr-lens mode-locked ytterbium-activated orthoaluminate laser

Identifier:  imarina:9266838

Handle: https://hdl.handle.net/20.500.11797/imarina9266838

Authors:  Lin, ZL; Xue, WZ; Zeng, HJ; Zhang, G; Zhang, PX; Chen, ZQ; Li, Z; Petrov, V; Loiko, P; Mateos, X; Lin, HF; Wang, L; Chen, WD

Abstract:
We report on the first, to the best of our knowledge, Kerr-lens mode-locked laser based on an Yb3+-doped perovskite-type orthoaluminate crystal exploiting two different principal light polarizations. The Yb:(Y,Gd)AlO3 laser delivers soliton pulses as short as 32 fs at 1067nm with an average output power of 328mW and a pulse repetition rate of similar to 84.6MHz for E parallel to a polarization. For the orthogonal E parallel to b polarization, 33-fs pulses are generated at 1057nm with an average output power of 305mW. Power scaling to a maximum average output power reaching 2.07 W is achieved at the expense of longer pulse duration (72 fs for E parallel to b), corresponding to an optical efficiency of 43.9% and a peak power of 303 kW. (C) 2022 Optica Publishing Group