Frequency stabilization of a 1.3 mu m laser diode using double resonance optical pumping in the 5P(3/2)-6S(1/2) transition of Rb atoms

摘要

The frequency stabilization of a laser diode in the 1.3 mu m region using double resonance optical pumping (DROP) spectrum in the 5P(3/2)-6S(1/2) transition of Rb-87 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 8.4 MHz. When the frequency of a 1.367 mu m laser diode is stabilized to the DROP spectrum, the frequency stability is 9 x 10(-12) after 100 s, Also, the wavelength of the frequency-stabilized laser locked to the 5P3/2-6S1/2 transition using a wavelength meter is measured. (c) 2008 Optical Society of America.