Oscillator-free atomic clock using a multimode laser

Sin Hyuk Yim, D. Cho

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We developed an atomic clock using two modes from a single extended-cavity diode laser in multimode operation. The two modes are phase locked with reference to a dispersion signal from a coherent population trapping (CPT) resonance of R 85 b at 3.036 GHz. The design is in principle free from an oscillator and a modulator and it is a significant simplification over a conventional CPT-based atomic clock. Allan deviation of the beat frequency is 1× 10-10 at 200 s integration time.

Original languageEnglish
Article number211119
JournalApplied Physics Letters
Issue number21
Publication statusPublished - 2010 May 24

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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