Guozhu Qin

A widely tunable femtosecond light source based on green-pumped BBO optical parametric oscillator

Femtosecond lasers in the 700–1000 nm spectral region hold irreplaceable research value in many frontier fields. In this work, to achieve tunable femtosecond laser output in the target spectral region, we first frequency-double a high-power Yb-doped all-fiber femtosecond laser at...