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Oscillator-free atomic clock using a multimode laser
- Authors
- Yim, Sin Hyuk; Cho, D.
- Issue Date
- 24-5월-2010
- Publisher
- AMER INST PHYSICS
- Keywords
- atomic clocks; radiation pressure; semiconductor lasers
- Citation
- APPLIED PHYSICS LETTERS, v.96, no.21
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 96
- Number
- 21
- ISSN
- 0003-6951
- Abstract
- 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 Rb-85 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 1x10(-10) at 200 s integration time. (C) 2010 American Institute of Physics. [doi:10.1063/1.3435474]
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