A tri-wavelength synchronous mode-locked Nd:SYSO laser with a semiconductor saturable absorber mirror

Abstract

We report on the generation of passive mode locking of a Nd:Sc0.2Y 0.8SiO5 (Nd:SYSO) laser using a semiconductor saturable absorber mirror. Linear polarized, tri-wavelength synchronous mode-locked pulses were obtained for laser emissions at 1075.55, 1076.80 and 1078.20 nm. An interference pattern was observed in the autocorrelation trace, the beat pulse had a repetition rate of 0.345 THz and the beat pulse width was 646 fs. Numerical simulation was conducted to clarify the formation of the autocorrelation trace.