arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0507208physics.atom-ph
收藏

光学参考腔长度的长期稳定

Long-term stabilization of the length of an optical reference cavity

Gaëtan Hagel, Marie Houssin, Martina Knoop, Caroline Champenois, Michel Vedel, Fernande Vedel

摘要:

为了获得光学参考腔的高度长期长度稳定性,其自由光谱范围通过精确且稳定的频率合成器来锁定。锁定方案是双重的:激光器被锁定在参考法布里-珀罗腔的N $^{th}$模式上,并且部分激光在频率上移动以与腔的(N+1)$^{th}$模式谐振。这种位移是由安装在双通方案中的声光调制器(AOM)产生的,与参考腔的自由光谱范围的一半相匹配。所得到的腔的长度的绝对稳定达到每秒10个$^{-11}$水平,受限于锁定转移特性和AOM控制合成器的频率稳定性。

英文摘要:

To obtain a high degree of long-term length stabilisation of an optical reference cavity, its free-spectral range is locked by means of an accurate and stable frequency synthesizer. The locking scheme is twofold: a laser is locked on the N$^{th}$ mode of a reference Fabry-Perot cavity and part of the laser light is shifted in frequency to be in resonance with the (N+1)$^{th}$ mode of the cavity. This shift is generated by an acousto-optical modulator (AOM) mounted in a double-pass scheme, matching half of the free spectral range of the reference cavity. The resulting absolute stabilization of the length of the cavity reaches the 10$^{-11}$ level per second, limited by the lock transfer properties and the frequency stability of the AOM control synthesizer.

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。

↑