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arXiv · 1407.3565

A simple digital system for tuning and long-term frequency stabilisation of a CW Ti:Sapphire laser

I. I. Beterov·A. Markovski·S. M. Kobtsev·E. A. Yakshina·V. M. Entin·D. B. Tretyakov·V. I. Baraulya·I. I. Ryabtsev
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Abstract

We have implemented a simple and cost-effective digital system for long-term frequency stabilisation and locking to an arbitrary wavelength of the single-frequency ring CW Ti:Sapphire laser. This system is built around two confocal Fabry-Perot cavities, one of which is used to narrow short-term line width of the laser and the other to improve long-term stability of the laser frequency. The second interferometer is also in the path of the radiation from an external-cavity diode laser stabilized to an atomic transition. Our system is an extension of a commercial Tekhnoscan laser lock. This system has been successfully used in experiments on high-resolution laser spectroscopy of ultracold Rydberg atoms.

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I. I. Beterov, A. Markovski, S. M. Kobtsev, E. A. Yakshina, V. M. Entin, D. B. Tretyakov, V. I. Baraulya, I. I. Ryabtsev. 2014-07-14. A simple digital system for tuning and long-term frequency stabilisation of a CW Ti:Sapphire laser. https://arxiv.org/abs/1407.3565

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