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

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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.

Original languageEnglish
Title of host publicationAOPC 2019
Subtitle of host publicationOptoelectronic Devices and Integration; and Terahertz Technology and Applications
EditorsZhiping Zhou, Xiaocong Yuan, Daoxin Dai
PublisherSPIE
Number of pages6
ISBN (Electronic)9781510634404
DOIs
Publication statusPublished - 1 Jan 2019
EventApplied Optics and Photonics China 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, AOPC 2019 - Beijing, China
Duration: 7 Jul 20199 Jul 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11334
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceApplied Optics and Photonics China 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, AOPC 2019
CountryChina
CityBeijing
Period07.07.201909.07.2019

Keywords

  • atomic clock
  • direct optical bonding
  • MEMS-compatible technology
  • miniature rubidium vapour cell
  • TECHNOLOGY

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