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| Hauptverfasser: | , , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| Online-Zugang: | https://arxiv.org/abs/2409.16065 |
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| _version_ | 1866913514893869056 |
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| author | Zwettler, Timo Xue, Zeyang Bolognini, Gaia Bühler, Tabea Hruby, Lorenz Fabre, Aurélien Donner, Tobias Brantut, Jean-Philippe |
| author_facet | Zwettler, Timo Xue, Zeyang Bolognini, Gaia Bühler, Tabea Hruby, Lorenz Fabre, Aurélien Donner, Tobias Brantut, Jean-Philippe |
| contents | We describe the design and operation of a high-stability Fabry-Perot cavity, for laser stabilization in cavity quantum-electrodynamics experiments. Our design is based on an inexpensive and readily available uniaxial carbon-fiber reinforced polymer tube spacer, featuring an ultra-low thermal expansion coefficient. As a result, our $136\mathrm{mm}$-long cavity, which has a finesse of ${5160}$, shows a coefficient of thermal expansion of $1.6 \times 10^{-6}~\mathrm{K}^{-1}$. Enclosing it in a hermetic chamber at room-pressure and using a simple temperature stabilization, we observe absolute frequency excursions over a full day below $50~\mathrm{MHz}$ for a laser operating at $446.785\mathrm{THz}$. The frequency stability is limited by the imperfect thermal isolation from the environment and can be corrected using a built-in piezo-electric actuator. In addition, we discuss a different variant of this design and identify future improvements. Our system provides a cost-effective and robust solution for transferring laser stability over different wavelengths, as well as for linewidth reduction or spectral filtering of CW laser sources for applications in quantum science. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16065 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Simple, highly-stable transfer cavity for laser stabilization based on a carbon-fiber reinforced polymer spacer Zwettler, Timo Xue, Zeyang Bolognini, Gaia Bühler, Tabea Hruby, Lorenz Fabre, Aurélien Donner, Tobias Brantut, Jean-Philippe Atomic Physics Instrumentation and Detectors Optics We describe the design and operation of a high-stability Fabry-Perot cavity, for laser stabilization in cavity quantum-electrodynamics experiments. Our design is based on an inexpensive and readily available uniaxial carbon-fiber reinforced polymer tube spacer, featuring an ultra-low thermal expansion coefficient. As a result, our $136\mathrm{mm}$-long cavity, which has a finesse of ${5160}$, shows a coefficient of thermal expansion of $1.6 \times 10^{-6}~\mathrm{K}^{-1}$. Enclosing it in a hermetic chamber at room-pressure and using a simple temperature stabilization, we observe absolute frequency excursions over a full day below $50~\mathrm{MHz}$ for a laser operating at $446.785\mathrm{THz}$. The frequency stability is limited by the imperfect thermal isolation from the environment and can be corrected using a built-in piezo-electric actuator. In addition, we discuss a different variant of this design and identify future improvements. Our system provides a cost-effective and robust solution for transferring laser stability over different wavelengths, as well as for linewidth reduction or spectral filtering of CW laser sources for applications in quantum science. |
| title | Simple, highly-stable transfer cavity for laser stabilization based on a carbon-fiber reinforced polymer spacer |
| topic | Atomic Physics Instrumentation and Detectors Optics |
| url | https://arxiv.org/abs/2409.16065 |