Narrow-Line and Frequency Tunable Diode Laser System for S–D Transition of Ca+ Ions
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概要
- 論文の詳細を見る
A new type of diode laser is used for the development of an extremely narrow linewidth and frequency-tunable clock laser system for a Ca+ ion optical frequency standard. The required reduction of linewidth was achieved by locking the laser to an ultrahigh-finesse ultralow-expansion glass (ULE) reference cavity. The long-term frequency drift is reduced by stabilizing a cavity temperature at the point that the thermal expansion coefficient of the ULE is zero. As a result, the laser linewidth is decreased to lower than 25 Hz and the long-term drift is less than 0.025 Hz/s. The other laser offset locked to the stabilized laser is continuously frequency tunable in the entire free spectral range of the reference cavity without degradation of stability and linewidth. This laser system is actually applied to optical frequency standard development and used for the observation of the 2S1/2–2D5/2 transition of Ca+ ions.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-08-25
著者
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Li Ying
National Institute Of Information And Communications Technology
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ITO Hiroyuki
National Institute of Information and Communications Technology
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KAJITA Masatoshi
National Institute of Information and Communications Technology
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HOSOKAWA Mizuhiko
National Institute of Information and Communications Technology
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Nagano Shigeo
National Inst. Information And Communications Technol. Tokyo Jpn
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Matsubara Kensuke
National Institute of Advanced Industrial Science and Technology (AIST)
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Kajita Masatoshi
National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
関連論文
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- Stability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in ^Sr
- Preparing Single Ions in $m=0$ States in the Lamb-Dicke Regime
- Stable Operation of Femtosecond Laser Frequency Combs with Uncertainty at the $10^{-17}$ Level toward Optical Frequency Standards
- Precise Frequency-Drift Measurement of Extended-Cavity Diode Laser Stabilized with Scanning Transfer Cavity
- Narrow-Line and Frequency Tunable Diode Laser System for S–D Transition of Ca+ Ions