We have directly monitored the rf Stark-field-induced splitting of the gain profile of the 1222-µm 13CH3F optically pumped far-infrared (OPFIR) laser transition. The resulting data are found to be in good agreement with ac Stark theory. Comparison with dc Stark tuning techniques shows that the rf Stark effect possesses a number of attractive attributes for frequency tuning cw OPFIR lasers, including significant increase in the turing range and straightforward implementation.
© 1985 Optical Society of America
David D. Skatrud and Frank C. De Lucia, "Radio-frequency Stark tuning of optically pumped far-infrared lasers," Opt. Lett. 10, 215-217 (1985)