Efficient frequency doubling at 399 nm

Year: 2014

Authors: Pizzocaro M., Calonico D., Cancio Pastor P., Catani J., Costanzo G. A., Levi F., Lorini L.

Autors Affiliation: Politecnico di Torino, Dipartimento di Elettronica e Telecomunicazioni, C.so duca degli Abruzzi 24, 10125 Torino, Italy; Istituto Nazionale di Ricerca Metrologica (INRIM), Str. delle Cacce 91, 10135 Torino, Italy; Istituto Nazionale di Ottica (INO-CNR), Via Nello Carrara, 1, 50019 Sesto Fiorentino, Italy; European Laboratory for Non-Linear Spectroscopy (LENS), Via Nello Carrara, 1, 50019 Sesto Fiorentino, Italy

Abstract: We describe a reliable, high-power, and narrow-linewidth laser source at 399 nm, which is useful for cooling and trapping of ytterbium atoms. A continuous-wave titanium-sapphire laser at 798 nm is frequency doubled using a lithium triborate crystal in an enhancement cavity. Up to 1.0W of light at 399 nm has been obtained from 1.3 W of infrared light, with an efficiency of 80%. (C) 2014 Optical Society of America

Journal/Review: APPLIED OPTICS

Volume: 53 (16)      Pages from: 3388  to: 3392

More Information: The authors would like to acknowledge L. Fallani for careful reading, E. K. Bertacco for help with electronics, and A. Barbone, M. Bertinetti, and V. Fornero for technical help. The authors acknowledge funding from the European Metrology Research Programme (EMRP) Project SIB55-ITOC, the European Reserch Council (ERC) Advanced Grant DISQUA, the European Union 126 FP7 Integrated Project SIQS, and the European Union FP7 integrated infrastructure initiative Laserlab Europe. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.
KeyWords: Atom lasers; Sapphire, Continuous Wave; Enhancement cavities; Frequency-doubling; High power; Infrared light; Lithium triborate crystal; Narrow linewidth lasers; Titanium sapphire laser, Frequency doublers
DOI: 10.1364/AO.53.003388

Citations: 27
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