We present an assortment of experiments exploring loading, control, and probing of laser-cooled caesium atoms inside a hollow-core photonic-bandgap fiber.
Laser locking is a crucial tool in various scientific applications, especially in the field of atomic physics, where the laser's frequency must be stable with respect to the frequencies of atomic transitions. This work aims to leverage the advantages of 3D printed push-fit slots to achieve an inexpensive, compact, and highly customizable optical setup for locking lasers to the frequency of transition between two excited, and thus unpopulated, electron states of a neutral atom. In our approach, the optical components are mounted in custom 3D printed slots instead of traditional optical posts to decrease costs and overall size. The error signal is then created by an Electromagnetically Induced Transparency (EIT) signal in a Two-Photon Dichroic Atomic Vapor Laser Lock (T-P DAVLL), corresponding to the 6S1/2, 6P1/2, and 8S1/2 states of Cesium.
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