CPT-based atomic clock with Rb vapour cell fabricated by direct optical bonding

S. Kobtsev; S. Donchenko; S. Khripunov; D. Radnatarov; I. Blinov; V. Palchikov

doi:10.1117/12.2550611

18 December 2019 CPT-based atomic clock with Rb vapour cell fabricated by direct optical bonding

S. Kobtsev, S. Donchenko, S. Khripunov, D. Radnatarov, I. Blinov, V. Palchikov

Proceedings Volume 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications; 113341E (2019) https://doi.org/10.1117/12.2550611
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

The work presents a study of CPT-based atomic clocks with miniature rubidium vapour cells fabricated by direct optical bonding (DOB). This MEMS-compatible technology was for the first time used for making cells containing alkali-metal vapour. One of its important advantages is relatively low temperature (e.g. room temperature) required for cell assembly. The work discusses results of spectral measurements of DOB-fabricated cells with a volume of less than 1 cm³ , which provided stability of CPT-based atomic clocks better than 5·10^–11 at 1 second and 5·10^–12 at 24 hours. The obtained results suggest a significant potential of DOB for fabrication of alkali-metal vapour cells for broader application and cost reduction of atomic clocks.

Citation Download Citation

S. Kobtsev, S. Donchenko, S. Khripunov, D. Radnatarov, I. Blinov, and V. Palchikov "CPT-based atomic clock with Rb vapour cell fabricated by direct optical bonding", Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113341E (18 December 2019); https://doi.org/10.1117/12.2550611

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