【摘要】 采用啁啾镜和棱镜对相结合补偿色散的方法在自调Q自锁模钛宝石激光器腔内直接产生了超过一个倍频程的超连续光谱 ,光谱范围从 4 6 0nm到 10 0 0nm ;这是飞秒激光器输出光谱在短波波段第一次突破 5 0 0nm .这将使得脉冲的载波包络偏移频率的测量装置得到大大简化 ,同时也提高了光频测量的稳定性更多还原

【Abstract】 A Ti: sapphire oscillator emitting an octave-spanning spectrum that ranges from 460nm to 1000nm is demonstrated. To our knowledge, it is the first time that a supercontinuum extending beyond 500nm in the blue end is generated from a femtosecond oscillator. The self-Q-switched and self-modelocked Ti: sapphire oscillator uses chirped mirrors and a prism pair for dispersion compensation. These results will make the measurement of carrier-envelope offset frequency simpler and improve the stability of optical frequency metrology at the same time.更多还原