振动不敏感光学谐振腔及其稳定性的绝对测定
A vibration-insensitive optical cavity and absolute determination of its ultrahigh stability
摘要：
我们使用的三角帽的方法来评估三个不同的超稳参考腔，其中一个具有振动不敏感的设计，甚至不需要振动隔离的绝对频率稳定性。Nd：YAG激光器和二极管激光器被实现为光源。我们观察到所有三个腔之间的$\sim1$ Hz拍音线宽。测量结果表明，该谐振腔在100 $μ$ s ~ 200 s的整个测量时间内具有良好的频率稳定性。一个绝对的，相关删除艾伦偏差的$1.4\times10^{-15}$在1秒的这个腔，给出了一个频率的不确定性只有0.44赫兹。
英文摘要：
We use the three-cornered-hat method to evaluate the absolute frequency stabilities of three different ultrastable reference cavities, one of which has a vibration-insensitive design that does not even require vibration isolation. An Nd:YAG laser and a diode laser are implemented as light sources. We observe $\sim1$ Hz beat note linewidths between all three cavities. The measurement demonstrates that the vibration-insensitive cavity has a good frequency stability over the entire measurement time from 100 $μ$s to 200 s. An absolute, correlation-removed Allan deviation of $1.4\times10^{-15}$ at 1 s of this cavity is obtained, giving a frequency uncertainty of only 0.44 Hz.
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