Generation of 14W at 589nm by frequency doubling of high-power CW linearly polarized Raman fiber laser radiation in MgO:sPPLT crystal

We introduce an efficient, single-mode, linearly polarized continuous wave (CW) Raman fiber laser (RFL), operating at 1178 nm, with 65 W maximum output power and a narrow linewidth of 0.1 nm. Single-pass second-harmonic generation was demonstrated using a 20 mm long MgO-doped stoichiometric periodic...

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Bibliographic Details
Published in:Optics letters 2016-06, Vol.41 (11), p.2644-2647
Main Authors: Surin, A A, Borisenko, T E, Larin, S V
Format: Article
Language:English
Subjects:
Continuous wave
Conversion
Crystals
Energy conversion efficiency
Frequency doubling
Lithium tantalates
Raman lasers
Scaling
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Summary:We introduce an efficient, single-mode, linearly polarized continuous wave (CW) Raman fiber laser (RFL), operating at 1178 nm, with 65 W maximum output power and a narrow linewidth of 0.1 nm. Single-pass second-harmonic generation was demonstrated using a 20 mm long MgO-doped stoichiometric periodically polled lithium tantalate (MgO:sPPLT) crystal pumped by RFL radiation. Output power of 14 W at 589 nm with 22% conversion efficiency was achieved. The possibility of further power scaling is considered, as no crystal degradation was observed at these power levels.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.41.002644