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CW Nd :YLF lasers for cold atom optical clocks and precision spectroscopy of hydrogenic systems

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Abstract

We describe single-frequency operation of diode-pumped Nd :YLF lasers providing 1.5 W or more output around 1.3 µm. Their harmonics are destined for laser cooling of atomic silver, and interrogation of clock transitions in silver and calcium. Using a ring laser, we have obtained ≅ 400 mW at 661.3 nm with intra-cavity frequency doubling in type-I BBO. Other applications include Doppler-free two-photon spectroscopy of hydrogen and singly-ionized helium for tests of QED and the determination of the Rydberg constant.

© 2003 Optical Society of America

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