Abstract
Experiments on developing a frequency-stabilized 555.8-nm laser are presented. The 555.8-nm laser
is obtained by frequency doubling of a 1111.6-nm diode laser through single-passing a periodically poled
lithium niobate (PPLN) waveguide. The 555.8-nm laser is then locked to a stable high-finesse Fabry-Perot (FP)
cavity by the Pound-Drever-Hall (PDH) technique. The finesse of the cavity is measured by the heterodyne
cavity ring-down spectroscopy technique. The linewidth of the 555.8-nm laser is investigated. After the laser
is locked, the laser line width is reduced to about 3 kHz. This frequency-stabilized 555.8-nm laser is used in
experiments on the laser cooling and trapping of ytterbium atoms to develop an ytterbium optical clock.
© 2013 Chinese Optics Letters
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