Distributed Feedback Lasers for Quantum Cooling Applications
| Autor: | Marc Sorel, Eugenio Di Gaetano, Szymon Stanczyk, Steffan Gwyn, Thomas J. Slight, Martin Knapp, Euan McBrearty, Piotr Perlin, Mike Leszczynski, Scott Watson, Edik U. Rafailov, Szymon Grzanka, S. P. Najda, Kevin E. Docherty, Douglas J. Paul, M. Haji, Amit Yadav, Anthony Kelly |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Single-mode optical fiber Physics::Optics 02 engineering and technology Laser Chip 01 natural sciences Atomic clock law.invention Power (physics) Semiconductor laser theory Laser linewidth Wavelength 020210 optoelectronics & photonics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Optoelectronics Physics::Atomic Physics 010306 general physics business |
| Zdroj: | ICTON |
| ISSN: | 2162-7339 |
| Popis: | There is an ever-growing need for compact sources which can be used for the cooling process in high accuracy atomic clocks. Current systems make use of large, expensive lasers which are power-hungry and often require frequency doubling in order to hit the required wavelengths. Distributed feedback (DFB) lasers have been fabricated at a number of key wavelengths which would allow chip scale atomic devices with very high accuracy to become a reality. Two key atomic transitions analysed here are 88 Sr + and 87 Rb which require cooling at 422 nm and 780.24 nm, respectively. The vital parameter of the DFB lasers for this application is the linewidth, as very narrow linewidths are required in order for the atomic cooling process to occur. The lasers realised here produce the required power levels, with high side-mode suppression ratios and show good single mode tuning which is important for hitting precise wavelengths. This work will present the latest techniques and results using the DFB lasers at both wavelengths. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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