High-finesse fiber Fabry-Perot cavities: stabilization and mode matching analysis
High-finesse fiber Fabry-Perot cavities: stabilization and mode matching analysis
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DOI：
10.1007/s00340-015-6281-z
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发表时间：
2016-03-01
影响因子：
2.1
通讯作者：
Ratschbacher, L.
中科院分区：
文献类型：
--
作者：
Gallego, J.;Ghosh, S.;Ratschbacher, L.
由光纤端面上的微加工反射镜形成的光纤法布里-珀罗腔用于越来越多的技术和科学应用中，其中它们通常需要精确稳定其光学谐振。在这里，我们研究了两种不同的方法来构建光纤法布里-珀罗谐振腔和稳定的长度在腔量子电动力学实验与中性原子。一个压电机械致动腔与反馈的Pound-DreverHall锁定技术的基础上相比，一种新的刚性腔的设计，利用高被动稳定性的单片腔间隔，并采用热自锁和外部温度调谐。此外，我们提出了一个一般的分析模式匹配问题的光纤法布里-珀罗腔，这解释了它们的反射线形状的不对称性，并具有重要的意义，光纤谐振器的最佳对准。最后，我们讨论了光纤产生的背景光子的问题。我们希望我们的研究结果有助于在未来将高精细光纤法布里-珀罗腔集成到紧凑和强大的量子器件中。
Fiber Fabry-Perot cavities, formed by micro-machined mirrors on the end-facets of optical fibers, are used in an increasing number of technical and scientific applications, where they typically require precise stabilization of their optical resonances. Here, we study two different approaches to construct fiber Fabry-Perot resonators and stabilize their length for experiments in cavity quantum electrodynamics with neutral atoms. A piezo-mechanically actuated cavity with feedback based on the Pound-DreverHall locking technique is compared to a novel rigid cavity design that makes use of the high passive stability of a monolithic cavity spacer and employs thermal self-locking and external temperature tuning. Furthermore, we present a general analysis of the mode matching problem in fiber Fabry-Perot cavities, which explains the asymmetry in their reflective line shapes and has important implications for the optimal alignment of the fiber resonators. Finally, we discuss the issue of fiber-generated background photons. We expect that our results contribute toward the integration of high-finesse fiber Fabry-Perot cavities into compact and robust quantum-enabled devices in the future.