基于声光锁模全固态660 nm激光器

All-solid-state acousto-optic mode-locked laser operating at 660 nm

脉冲宽度为皮秒的红光激光器,具有脉冲宽度窄,峰值功率高的优点,使其在工业、医疗、科研和信息存储等方面具有广泛的应用。本文采用声光锁模(AOML)的方式设计了一款具有窄线宽、高转换效率,输出波长为660 nm的全固态皮秒激光器。该激光器采用半导体侧面泵浦的方式,通过优化谐振腔型,并使用两块LiB3O5(LBO)晶体进行腔外倍频,最终获得最大输出功率为8.6 W的660 nm激光输出。激光器采用脉冲侧面泵浦的模式,获得的锁模脉冲频率为100 MHz,脉冲宽度为887 ps。1319 nm至660 nm激光的倍频转换效率可达41%。

Red lasers with a picosecond pulse width are widely used in various fields such as industrial,medical,scientific research and information strorage due to their narrow pulse width and high peak power.This paper presents an all-solid-state laser,operating at 660 nm with picosecond pulse width,narrow band,and high conversion efficiency,which is demonstrated by the acousto-optic mode-locked(AOML)method.By optimizing the cavity and implementing external frequency doubling with two LiB3O5(LBO)crystals along with various techniques,a mode-locked red laser source with a maximum output power of 8.6 W is developed.The laser operates in a pulsed side-pumped regime and contains the mode-locked pulses with a frequency of 100 MHz and a pulse width of 887 ps.The optical-to-optical conversion efficiency from 1319 nm to 660 nm can reach up to 41%.