Vol. 32, issue 08, article # 10

Kolker D.B., Аntipov O.L., Larin S.V., Isaenko L.I., Vedenyapin V.N., Ahmatkhanov A.R., Shur V.Ya. Optical parametric oscillator at MID-IR spectral region based on periodically polled LiNbO3 pumped by Tm3+:Lu2O3 ceramic laser. // Optika Atmosfery i Okeana. 2019. V. 32. No. 08. P. 669–674 [in Russian].
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Optical parametric oscillator based on periodically polled MgO:LiNbO3 pumped by repetitively-pulsed Tm3+:Lu2O3 ceramic laser with a fiber-laser pumping was experimentally studied. The average power at the spectral range of 3.7–4.2 mm at the OPO output was 530 mW at the power of 7.9 W of the ceramic laser. The full efficiency of energy conversion from NIR-IR to MID-IR was 6.7% and differential efficiency was 8%. For parametric conversion of two-micron radiation from lasers (for example, on Tm3+:Lu2O3 ceramics or Ho3+:YAG crystals) into the mid-IR range, KTP and KTA crystals with regular domain structures are also promising.


optical parametric oscillator, periodically-polled structure, mid-infrared, PPMgO:LN


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