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arXiv 0901.4717physics.optics
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基于振动不敏感腔的超稳激光器

Ultrastable lasers based on vibration insensitive cavities

J. Millo, D. V. Magalhaes, C. Mandache, Y. Le Coq, E. M. L. English, P. G. Westergaard, J. Lodewyck, S. Bize, P. Lemonde, G. Santarelli

摘要:

我们提出了两个超稳定激光器的基础上两个振动不敏感腔的设计,一个垂直的光轴几何形状,其他水平。超稳定腔构造与熔融石英反射镜基板,示出降低热噪声限制,以提高频率稳定性比以前的设计。在每个空间方向上测得的振动灵敏度分量等于或优于1.5 e-11/m.s^-2,这表明与以前的研究相比有了显著的改善。我们已经测试了对腔体支撑点位置的非常低的依赖性,以确定我们的设计消除了微调的需要,以实现极低的振动灵敏度。相对频率测量表明,至少一个稳定的激光器在1秒时具有优于5.6e-16的稳定性,这是对于该腔长度获得的最佳结果。

英文摘要:

We present two ultra-stable lasers based on two vibration insensitive cavity designs, one with vertical optical axis geometry, the other horizontal. Ultra-stable cavities are constructed with fused silica mirror substrates, shown to decrease the thermal noise limit, in order to improve the frequency stability over previous designs. Vibration sensitivity components measured are equal to or better than 1.5e-11 per m.s^-2 for each spatial direction, which shows significant improvement over previous studies. We have tested the very low dependence on the position of the cavity support points, in order to establish that our designs eliminate the need for fine tuning to achieve extremely low vibration sensitivity. Relative frequency measurements show that at least one of the stabilized lasers has a stability better than 5.6e-16 at 1 second, which is the best result obtained for this length of cavity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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