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Laser system for Doppler cooling of ytterbium ion in an optical frequency standard

A laser system for Doppler cooling of ytterbium ion on the transition in a single-ion optical frequency standard is developed. The second harmonic of a semiconductor laser with a wavelength of is used for cooling. The laser frequency is doubled in a nonlinear BiBO crystal embedded in a ring resonato...

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Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2014-01, Vol.44 (6), p.527-529
Main Authors: Chepurov, S.V., Lugovoy, A.A., Kuznetsov, S.N.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c391t-d34097d767c81a0a61f3c57681d09151ae555b591bbbd4db43b46409b4f5885e3
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description A laser system for Doppler cooling of ytterbium ion on the transition in a single-ion optical frequency standard is developed. The second harmonic of a semiconductor laser with a wavelength of 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 is generated at a wavelength of . Diode laser radiation is modulated by an electro-optic modulator at to generate a sideband exciting the 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 state to less than and increase the cooling efficiency.
doi_str_mv 10.1070/QE2014v044n06ABEH015450
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ispartof Quantum electronics (Woodbury, N.Y.), 2014-01, Vol.44 (6), p.527-529
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1468-4799
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source Institute of Physics
subjects BISMUTH COMPOUNDS
BORON OXIDES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COOLING
Cooling systems
CRYSTALS
diode laser
Doppler effect
EFFICIENCY
frequency doubling
frequency stabilisation
GHZ RANGE 01-100
LASER RADIATION
Lasers
NONLINEAR PROBLEMS
Optical frequency
RESONATORS
SEMICONDUCTOR LASERS
Sidebands
Ytterbium
YTTERBIUM IONS
title Laser system for Doppler cooling of ytterbium ion in an optical frequency standard
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