1 May 2014 CW Yb-fibre laser with wavelength-variable efficient intracavity frequency doubling in partially coupled enhancement cavity
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Abstract
This paper presents the results on second harmonic generation in a tuneable Yb-fibre laser with an enhancement cavity partially coupled to the laser resonator. The maximal second harmonic output power was 880 mW at 536 nm when pumped with 6.2 W at 976 nm. The output radiation line width of the second harmonics of the Yb-fibre laser did not exceed 0.5 nm with a tuning range of 521–545 nm and the output power at the ends of this range 220 and 450 mW respectively. Further presented is an analysis of different frequency doubling configurations both with and without an enhancement cavity in a broad range of output powers of the fundamental radiation.
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Sergey Khripunov, Sergey Khripunov, Daba Radnatarov, Daba Radnatarov, Sergey Kobtsev, Sergey Kobtsev, Aleksey Skorkin, Aleksey Skorkin, } "CW Yb-fibre laser with wavelength-variable efficient intracavity frequency doubling in partially coupled enhancement cavity", Proc. SPIE 9135, Laser Sources and Applications II, 91350E (1 May 2014); doi: 10.1117/12.2051876; https://doi.org/10.1117/12.2051876
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