Fiber-coupled external cavity DFB-laser
Fuente:
arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866910961131061248 |
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| author | Nak, David C. Riebesehl, Jasper Hemmerich, Andreas |
| author_facet | Nak, David C. Riebesehl, Jasper Hemmerich, Andreas |
| contents | Narrow-linewidth, compact and robust laser systems are of high interest, especially with prospects for portable quantum metrological applications. We realized an external cavity DFB-laser incorporating an intra-cavity EOM in a fully fiber-coupled manner. Additional active feedback on the EOM, by referencing a high finesse cavity, enabled us to reach low kHz-linewidths. We analyzed the laser spectrum by means of delayed self-heterodyne measurements to reconstruct the power spectral density. This is achieved by utilizing a data-driven power spectrum equalization approach. The presented laser setup is successfully used to create an ultracold gas by laser cooling on a narrow atomic transition of ${}^{40}$Ca at 1978 nm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_15591 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fiber-coupled external cavity DFB-laser Nak, David C. Riebesehl, Jasper Hemmerich, Andreas Optics Narrow-linewidth, compact and robust laser systems are of high interest, especially with prospects for portable quantum metrological applications. We realized an external cavity DFB-laser incorporating an intra-cavity EOM in a fully fiber-coupled manner. Additional active feedback on the EOM, by referencing a high finesse cavity, enabled us to reach low kHz-linewidths. We analyzed the laser spectrum by means of delayed self-heterodyne measurements to reconstruct the power spectral density. This is achieved by utilizing a data-driven power spectrum equalization approach. The presented laser setup is successfully used to create an ultracold gas by laser cooling on a narrow atomic transition of ${}^{40}$Ca at 1978 nm. |
| title | Fiber-coupled external cavity DFB-laser |
| topic | Optics |
| url | https://arxiv.org/abs/2505.15591 |