Sub-femtosecond synchronization of KLM Ti:sapphire and Cr:forsterite lasers

Summary form only given. In this paper, we present a novel synchronized technique based on the fs KLM Ti:sapphire and Cr:forsterite lasers, in which timing jitter of less than 1 fs was demonstrated within the measurement accuracy. The schematic of the experimental setup consists of prism dispersion controlled KLM Ti:sapphire and Cr:forsterite lasers. In order to induce a strong nonlinear coupling effect for synchronization, we used two pairs of D-shaped concave mirrors to focus and cross both laser beams inside the Ti:sapphire crystal. With 5 W 532 nm and 9 W 1064 nm pump lasers, stable mode-locking powers of 600 mW and 150 mW were produced from the Ti:sapphire and Cr:forsterite lasers, respectively.