| Autor: |
Galland, N., Lucic, N., Zhang, S., Alvarez-Martinez, H., Targat, R. Le, Ferrier, A., Goldner, P., Fang, B., Seidelin, S., Coq, Y. Le |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Optics Letters, 45, 1930 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OL.389833 |
| Popis: |
We present an experimental technique for realizing a specific absorption spectral pattern in a rare-earth-doped crystal at cryogenic temperatures. This pattern is subsequently probed on two spectral channels simultaneously, thereby producing an error signal allowing frequency locking of a laser on the said spectral pattern. Appropriate combination of the two channels leads to a substantial reduction of the detection noise, paving the way to realizing an ultra-stable laser for which the detection noise can be made arbitrarily low when using multiple channels. We use such technique to realize a laser with a frequency instability of $1.7\times 10^{-15}$ at 1 second, not limited by the detection noise but by environmental perturbation of the crystal. This is comparable with the lowest instability demonstrated at 1 second to date for rare-earth doped crystal stabilized lasers. |
| Databáze: |
arXiv |
| Externí odkaz: |
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