Thin-Disk Laser Oscillator Driving THz Generation Up To 6 THz

We present a proof-of-principle demonstration of THz generation driven by a short-pulse thin-disk laser (TDL) oscillator. The laser source is based on a directly diode-pumped Yb:Lu
₂
O
₃
gain crystal delivering 4 W average power in 50-fs pulses at 61 MHz repetition rate. Broadband THz radiation up to 6 THz is generated by optical rectification and detected via electro-optic sampling in GaP crystals. Our experiment shows the high potential of this power-scalable technology for driving MHz-repetition-rate broadband THz systems.