CAJ | 학술논문

LD抽运全固体Nd∶YVO4激光器在连续锁模状态运转下获得了高达1 GHz的重复频率.实验中采用半导体可饱和吸收镜作为锁模元件.利用透过率只有0.8%的输出镜以及可获得较小抽运光斑的2 WLD作为抽运源来优化激光器设计,有效地抑制了调Q锁模状态的运转.低的激光器振荡阈值(35 mW)和连续锁模阈值(0.8 W)显示了饱和吸收体低的插入损耗和激光器合理的设计.在最大抽运1.6 W 时获得了210 mW的平均输出功率.
LD추운전고체Nd∶YVO4격광기재련속쇄모상태운전하획득료고체1 GHz적중복빈솔.실험중채용반도체가포화흡수경작위쇄모원건.이용투과솔지유0.8%적수출경이급가획득교소추운광반적2 WLD작위추운원래우화격광기설계,유효지억제료조Q쇄모상태적운전.저적격광기진탕역치(35 mW)화련속쇄모역치(0.8 W)현시료포화흡수체저적삽입손모화격광기합리적설계.재최대추운1.6 W 시획득료210 mW적평균수출공솔.
A diode-pumped CW mode-locked Nd∶YVO4 laser with a repetition rate of 1 GHz was demonstrated. The laser was passively mode locked by a semiconductor saturable absorber mirror (SESAM). The QML operation was successfully suppressed by using an output coupler with very low transmission (0.8%) and a 2 W LD pump source introducing a small pump spot in the laser crystal. The lasing oscillation threshold was 35 mW and CW mode locking threshold was 0.8 W. The maximum average output power was 210 mW with 1.6 W pump power.