An all-solid-state laser source at 671 nm for cold atom experiments with lithium

Ulrich Eismann; Fabrice Gerbier; Carlota Canalias; Andrius Zukauskas; Gérard Trénec; Jacques Vigué; Frédéric Chevy; Christophe Salomon

doi:10.1007/s00340-011-4693-y

paper

An all-solid-state laser source at 671 nm for cold atom experiments with lithium

arXiv:1103.5841 · doi:10.1007/s00340-011-4693-y

Abstract

We present an all solid-state narrow line-width laser source emitting $670 mW$ output power at $671 nm$ delivered in a diffraction-limited beam. The \linebreak source is based on a fre-quency-doubled diode-end-linebreak pumped ring laser operating on the $^{4} F_{3/2} \to^{4} I_{13/2}$ transition in Nd:YVO $_{4}$ . By using periodically-poled po-tassium titanyl phosphate (ppKTP) in an external build-up cavity, doubling efficiencies of up to 86% are obtained. Tunability of the source over $100 GHz$ is accomplished. We demonstrate the suitability of this robust frequency-stabilized light source for laser cooling of lithium atoms. Finally a simplified design based on intra-cavity doubling is described and first results are presented.