FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Stable Narrow Linewidth 689nm Diode Laser for the Second Stage Cooling and Trapping of Strontium Atoms |
LI Ye1, LIN Yi-Ge1,3, ZHAO Yang2, WANG Qiang1, WANG Shao-Kai1, YANG Tao3, CAO Jian-Ping1, LI Tian-Chu1, FANG Zhan-Jun1, ZANG Er-Jun1 |
1Division of Electricity and Quantum Metrology, National Institute of Metrology, Beijing 100013 2Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084 3Department of optical Engineering, Beijing Institute of Technology, Beijing 100081 |
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Cite this article: |
LI Ye, LIN Yi-Ge, ZHAO Yang et al 2010 Chin. Phys. Lett. 27 074208 |
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Abstract We report stable narrow linewidth laser systems based on self-developed Littman configuration external cavity diode lasers (ECDLs). The frequency of the ECDL is stabilized to a high fineness ultralow-expansion glass reference cavity with the Pound-Drever-Hall technique. By heterodyne beating of two identical systems, we conclude that the linewidth of each ECDL is reduced to lower than 150 Hz and its frequency stability reaches 4.3× 10-14 at an averaging time of 1 s, the averaged long-term frequency drift is less than 0.2 Hz/s over 30 h measurement time.
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Keywords:
42.79.Gn
42.55.Px
42.60.Pk
37.10.Jk
06.20.fb
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Received: 01 January 1900
Published: 28 June 2010
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PACS: |
42.79.Gn
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(Optical waveguides and couplers)
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42.55.Px
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(Semiconductor lasers; laser diodes)
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42.60.Pk
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(Continuous operation)
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37.10.Jk
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(Atoms in optical lattices)
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06.20.fb
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(Standards and calibration)
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Abstract
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