540 mW of blue output power at 425 nm generated by intracavity frequency doubling an upconversion-pumped Er3+:YLiF4 laser

We report efficient room-temperature continuous-wave intracavity frequency doubling of an upconversion-pumped Er(1%):YLiF4 laser at 850 nm. A titanium–sapphire laser was used for excitation of the S3/24→I13/24 transition in erbium. The maximum laser output power at 850 nm was 1200 mW. Intracavity fr...

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Veröffentlicht in:Applied physics letters 1998-07, Vol.73 (2), p.139-141
Hauptverfasser: Möbert, P. E.-A., Heumann, E., Huber, G., Chai, B. H. T.
Format: Artikel
Sprache:eng
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Zusammenfassung:We report efficient room-temperature continuous-wave intracavity frequency doubling of an upconversion-pumped Er(1%):YLiF4 laser at 850 nm. A titanium–sapphire laser was used for excitation of the S3/24→I13/24 transition in erbium. The maximum laser output power at 850 nm was 1200 mW. Intracavity frequency doubling the fundamental wave utilizing lithium triborate as nonlinear crystal yielded a maximum second-harmonic output power of 540 mW at 425 nm.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.121735