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首页> 外文期刊>Optics Letters >Precision phase control of an ultrawide-bandwidth femtosecond laser: a network of ultrastable frequency marks across the visible spectrum
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Precision phase control of an ultrawide-bandwidth femtosecond laser: a network of ultrastable frequency marks across the visible spectrum

机译:超宽带飞秒激光器的精确相位控制:在可见光谱范围内的超稳定频率标记网络

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摘要

We demonstrate that the stability of the current optical frequency comb generated by a Kerr-lens mode-locked femtosecond laser is limited by the microwave reference used for phase locking the comb spacing. Hence we implement precision frequency/phase control of the entire comb to the fundamental and second-harmonic frequencies of a stable cw laser without any external microwave reference. The stability of a cw iodine-stabilized laser is transferred to millions of comb lines (with an instability of 3×10~(-13)) covering more than one octave of the optical frequency spectrum. In addition, the mode spacing of the comb can be used as a stable microwave frequency derived directly from a stable optical oscillator.
机译:我们证明了由Kerr-lens锁模飞秒激光器产生的当前光频率梳的稳定性受到用于锁相梳间距的微波参考的限制。因此,我们在没有任何外部微波参考的情况下,将整个梳子实现了精确的频率/相位控制,使其达到稳定的连续激光器的基波和二次谐波频率。碘化钨稳定的激光的稳定性转移到数百万个梳状线(不稳定性为3×10〜(-13)),覆盖了光谱的一个八度以上。另外,梳的模式间隔可以用作直接从稳定的光学振荡器导出的稳定的微波频率。

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