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This article is cited in 5 scientific papers (total in 5 papers)
Extreme light fields and their applications
Laser system for Doppler cooling of ytterbium ion in an optical frequency standard
S. V. Chepurov, A. A. Lugovoy, S. N. Kuznetsov Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
Abstract:
A laser system for Doppler cooling of ytterbium ion on the 2S1/2 → 2P1/2 transition in a single-ion optical frequency standard is developed. The second harmonic of a semiconductor laser with a wavelength of 739 nm is used for cooling. The laser frequency is doubled in a nonlinear BiBO crystal embedded in a ring resonator, which also serves as a reference for laser frequency stabilisation. Second-harmonic power of ~100 μW is generated at a wavelength of 369.5 nm. Diode laser radiation is modulated by an electro-optic modulator at 14.75 GHz to generate a sideband exciting the 2S1/2 (F = 0) → 2P1/2 (F = 1) hyperfine component of the cooling transition that is not excited by resonant cooling light. The sideband relative intensity of a few percent proved to be sufficient to reduce the ion dwelling time in the 2S1/2 (F = 0) state to less than 10-4 s and increase the cooling efficiency.
Keywords:
diode laser, frequency doubling, frequency stabilisation.
Received: 03.03.2014 Revised: 21.03.2014
Citation:
S. V. Chepurov, A. A. Lugovoy, S. N. Kuznetsov, “Laser system for Doppler cooling of ytterbium ion in an optical frequency standard”, Kvantovaya Elektronika, 44:6 (2014), 527–529 [Quantum Electron., 44:6 (2014), 527–529]
Linking options:
https://www.mathnet.ru/eng/qe15970 https://www.mathnet.ru/eng/qe/v44/i6/p527
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Abstract page: | 363 | Full-text PDF : | 136 | References: | 37 | First page: | 31 |
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