A plug-and-play solution for characterizing two-way optical frequency transfer over free-space
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908529229561856 |
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| author | Ji, Jingxian Mukherjee, Shambo Kuhl, Alexander Koke, Sebastian Leipe, Markus Rothe, Markus Steinlechner, Fabian Kronjäger, Jochen |
| author_facet | Ji, Jingxian Mukherjee, Shambo Kuhl, Alexander Koke, Sebastian Leipe, Markus Rothe, Markus Steinlechner, Fabian Kronjäger, Jochen |
| contents | Optical clock networks connected by phase-coherent links offer significant potential for advancing fundamental research and diverse scientific applications. Free-space optical frequency transfer extends fiber-based connectivity to remote areas and holds the potential for global coverage via satellite links. Here we present a compact and robust portable, rack-integrated two-way free-space link characterization system. Equipped with plug-and-play capabilities, the system enables straightforward interfacing with various optical systems and facilitates quick deployment for field experiments. In this work, we achieve a fractional frequency instability of $2.0 \times 10^{-19}$ for an averaging time of 10 s over a 3.4 km horizontal fully folded intra-city free-space link. Moreover, the system maintains an uptime of $94\%$ over 15 hours, illustrating its reliability and effectiveness for high-precision optical frequency comparisons over free-space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_02161 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A plug-and-play solution for characterizing two-way optical frequency transfer over free-space Ji, Jingxian Mukherjee, Shambo Kuhl, Alexander Koke, Sebastian Leipe, Markus Rothe, Markus Steinlechner, Fabian Kronjäger, Jochen Optics Instrumentation and Detectors Optical clock networks connected by phase-coherent links offer significant potential for advancing fundamental research and diverse scientific applications. Free-space optical frequency transfer extends fiber-based connectivity to remote areas and holds the potential for global coverage via satellite links. Here we present a compact and robust portable, rack-integrated two-way free-space link characterization system. Equipped with plug-and-play capabilities, the system enables straightforward interfacing with various optical systems and facilitates quick deployment for field experiments. In this work, we achieve a fractional frequency instability of $2.0 \times 10^{-19}$ for an averaging time of 10 s over a 3.4 km horizontal fully folded intra-city free-space link. Moreover, the system maintains an uptime of $94\%$ over 15 hours, illustrating its reliability and effectiveness for high-precision optical frequency comparisons over free-space. |
| title | A plug-and-play solution for characterizing two-way optical frequency transfer over free-space |
| topic | Optics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2502.02161 |