Efficient optical parametrical oscillators and amplifiers were researched with different nonlinear crystals such as LBO, BBO, BiBO, KTA and SiC. Laser power up to 1.9W in the range from 688 to 1057nm, 2.32W in the range from 1.41-1.71μm, 1.3W in the range from 2.61 to 3.84μm, and the energy up to 520μJ at 2.8μm were obtained, corresponding to the maximum efficiency as high as 30%.

© 2018 The Author(s)

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