Generation of continuous-wave single-frequency 1.5 W 378 nm radiation by frequency doubling of a Ti:sapphire laser

We have generated continuous-wave single-frequency 1.5 W 378 nm radiation by frequency doubling a high-power Ti:sapphire laser in an external enhancement cavity. An LBO crystal that is Brewster-cut and antireflection coated on both ends is used for a long-term stable frequency doubling. By optimizin...

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Bibliographic Details
Published inApplied optics. Optical technology and biomedical optics Vol. 49; no. 9; p. 1666
Main Authors Cha, Yong-Ho, Ko, Kwang-Hoon, Lim, Gwon, Han, Jae-Min, Park, Hyun-Min, Kim, Taek-Soo, Jeong, Do-Young
Format Journal Article
LanguageEnglish
Published United States 20.03.2010
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Summary:We have generated continuous-wave single-frequency 1.5 W 378 nm radiation by frequency doubling a high-power Ti:sapphire laser in an external enhancement cavity. An LBO crystal that is Brewster-cut and antireflection coated on both ends is used for a long-term stable frequency doubling. By optimizing the input coupler's reflectivity, we could generate 1.5 W 378 nm radiation from a 5 W 756 nm Ti:sapphire laser. According to our knowledge, this is the highest CW frequency-doubled power of a Ti:sapphire laser.
ISSN:2155-3165
DOI:10.1364/AO.49.001666