Abstract
The frequency stabilization of a laser diode in the region using double resonance optical pumping (DROP) spectrum in the transition of atoms is demonstrated. The signal-to-noise ratio of the DROP spectrum is approximately ten times higher than that of the previous optical–optical double resonance spectrum. The spectral linewidth of the DROP measures . When the frequency of a laser diode is stabilized to the DROP spectrum, the frequency stability is after . Also, the wavelength of the frequency-stabilized laser locked to the transition using a wavelength meter is measured.
© 2008 Optical Society of America
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