Femtosecond dual-comb Yb:CaF<inf>2</inf> laser from a free-running polarization-multiplexed cavity for rapid optical sampling

Abstract

© 2020 The Author(s) We demonstrate a common-cavity polarization-multiplexed dual-comb Yb:CaF2 oscillator. Each comb delivers 440-mW average power, 175-fs pulses at 137-MHz repetition-rate with stable repetition-rate difference of 1-kHz. We thereby demonstrate low-noise ASOPS on SESAM and VECSEL structures.