arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1204.1209physics.optics
收藏

一种具有低热噪声和柔性热膨胀特性的光学参考腔设计

Design of an optical reference cavity with low thermal noise and flexible thermal expansion properties

J. Zhang, Y. X. Luo, B. Ouyang, K. Deng, Z. H. Lu, J. Luo

摘要:

通过有限元分析,设计了一种具有超稳光学参考腔的超稳光学参考腔。所设计的谐振腔具有较低的热噪声极限$1\times10^{-16}$和灵活的有效热膨胀系数(CTE)过零温度。复合腔和纯ULE腔之间的CTE零交叉温度差可以从$-10\ ^{\circ}$ C调谐到$23\ ^{\circ}$ C,这使得能够在室温附近操作所设计的参考腔,而不用担心ULE间隔物的CTE零交叉温度。该设计可适用于不同长度的腔体。通过结构优化,实现了腔体的抗振性。

英文摘要:

An ultrastable optical reference cavity with re-entrant fused silica mirrors and a ULE spacer structure is designed through finite element analysis. The designed cavity has a low thermal noise limit of $1\times10^{-16}$ and a flexible zero crossing temperature of the effective coefficient of thermal expansion (CTE). The CTE zero crossing temperature difference between a composite cavity and a pure ULE cavity can be tuned from $-10\ ^{\circ}$C to $23\ ^{\circ}$C, which enables operation of the designed reference cavity near room temperature without worrying about the CTE zero crossing temperature of the ULE spacer. The design can be applied to cavities with different lengths. Vibration immunity of the cavity is also achieved through structure optimization.

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。

↑