| Autor: |
J. Bébé Manga Lobé, María C. Nápoles García, Michel Lecomte, E. Vinet, Michel Krakowski, Olivier Drisse, Y. Robert, A. Larrue, Olivier Parillaud, N. von Bandel |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Novel In-Plane Semiconductor Lasers XIV. |
| ISSN: |
0277-786X |
| Popis: |
Time-frequency applications are in need of high accuracy and high stability clocks. Compact industrial Cesium atomic clocks optically pumped is a promising area that could satisfy these demands. However, the stability of these clocks relies, among others, on the performances of laser diodes that are used for atomic pumping. This issue has led the III-V Lab to commit to the European Euripides-LAMA project that aims to provide competitive compact optical Cesium clocks for earth applications. This work will provide key experience for further space technology qualification. We are in charge of the design, fabrication and reliability of Distributed-Feedback diodes (DFB) at 894nm (D1 line of Cesium) and 852nm (D2 line). The use of D1 line for pumping will provide simplified clock architecture compared to D2 line pumping thanks to simpler atomic transitions and larger spectral separation between lines in the 894nm case. Also, D1 line pumping overcomes the issue of unpumped “dark states” that occur with D2 line. The modules should provide narrow linewidth ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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