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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.18422 |
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| _version_ | 1866910805950201856 |
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| author | Klinger, E. Rivera-Aguilar, C. M. Mursa, A. Tanguy, Q. Passilly, N. Boudot, R. |
| author_facet | Klinger, E. Rivera-Aguilar, C. M. Mursa, A. Tanguy, Q. Passilly, N. Boudot, R. |
| contents | We describe the short-term frequency stability characterization of external-cavity diode lasers stabilized onto the 6S$_{1/2}$-7P$_{1/2}$ transition of Cs atom at 459 nm, using a microfabricated vapor cell. The laser beatnote between two nearly-identical systems, each using saturated absorption spectroscopy in a simple retroreflected configuration, exhibits an instability of $2.5\times10^{-13}$ at 1 s, consistent with phase noise analysis, and $3\times 10^{-14}$ at 200 s. The primary contributors to the stability budget at one second are the FM-AM noise conversion and the intermodulation effect, both emerging from laser frequency noise. These results highlight the potential of microcell-based optical references to achieve stability performances comparable to that of an active hydrogen maser in a remarkably simple architecture. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_18422 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cs microcell optical reference at 459 nm with short-term frequency stability below 2 $\times$ 10$^{-13}$ Klinger, E. Rivera-Aguilar, C. M. Mursa, A. Tanguy, Q. Passilly, N. Boudot, R. Atomic Physics Applied Physics We describe the short-term frequency stability characterization of external-cavity diode lasers stabilized onto the 6S$_{1/2}$-7P$_{1/2}$ transition of Cs atom at 459 nm, using a microfabricated vapor cell. The laser beatnote between two nearly-identical systems, each using saturated absorption spectroscopy in a simple retroreflected configuration, exhibits an instability of $2.5\times10^{-13}$ at 1 s, consistent with phase noise analysis, and $3\times 10^{-14}$ at 200 s. The primary contributors to the stability budget at one second are the FM-AM noise conversion and the intermodulation effect, both emerging from laser frequency noise. These results highlight the potential of microcell-based optical references to achieve stability performances comparable to that of an active hydrogen maser in a remarkably simple architecture. |
| title | Cs microcell optical reference at 459 nm with short-term frequency stability below 2 $\times$ 10$^{-13}$ |
| topic | Atomic Physics Applied Physics |
| url | https://arxiv.org/abs/2501.18422 |