Abstract
We report absolute frequency measurements of the , , and hyperfine components of molecular iodine P(28) 30-0 line at 535 nm. A frequency-doubled 1070 nm laser is frequency stabilized to a hyperfine component of using the third-harmonic demodulation technique. The frequency stability of is achieved at 10 s averaging time when its frequency is stabilized to the component. An optical frequency comb is used to measure its absolute frequency. The pressure shift is investigated to obtain the absolute frequency at zero pressure. The effect of pressure and power broadening of the component are also investigated. This light source can be used for investigating parity nonconservation effect in atomic thallium.
© 2013 Optical Society of America
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