Passively mode-locked YVO₄/Nd:YVO₄composite crystal green laser with a semiconductor saturable absorber mirror

Abstract

A diode-pumped passively mode-locked YVO4/ Nd:YVO4 composite crystal green laser with a semiconductor saturable absorber mirror (SESAM) and a intracavity frequency-doubling KTP crystal was realized. The maximum average output power of 2.06 W at 532 nm with a repetition rate of 100 MHz was obtained at a pump power of 15 W, corresponding to optical slop efficiency 17.2%. The 532 nm mode-locked pulse width was estimated to be approximately 18-ps.