| Autor: |
P. Resneau, María C. Nápoles García, N. von Bandel, Olivier Parillaud, Yannick Robert, E. Vinet, Michel Krakowski |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Quantum Sensing and Nano Electronics and Photonics XV. |
| Popis: |
Time and Frequency applications need high accuracy and high stability clocks. Optically pumped compact industrial Cesium atomic clocks are a promising approach that could satisfy these demands. However, the stability of these clocks relies, among others, on the performances of the laser diodes that are used. 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 ground applications. This work will provide key experience for further space technology qualification. III-V Lab was in charge of the design, fabrication and reliability of Distributed- Feedback diodes (DFB) at 894 nm (D1 line of Cesium) and 852 nm (D2 line). The use of D1 line for pumping will provide simplified clock architecture compared to the D2 line pumping thanks to simpler atomic transitions and a larger spectral separation between lines in the 894 nm case. Also, D1 line pumping overcomes the issue of unpumped “idle states” that occur with D2 line. The modules should provide narrow linewidth ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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