Optical Characteristics of Dielectric Mirrors of Resonator Based on Niobium Pentoxide and Silicon Dioxide.
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| Title: | Optical Characteristics of Dielectric Mirrors of Resonator Based on Niobium Pentoxide and Silicon Dioxide. |
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| Authors: | Kuznetsov, V. S.1,2 (AUTHOR), Zinoviev, M. M.1,2 (AUTHOR), Yudin, N. N.1,2 (AUTHOR) rach3@yandex.ru, Slyunko, E. S.1,2 (AUTHOR), Podzyvalov, S. N.1,2 (AUTHOR), Lysenko, A. B.1,2 (AUTHOR), Kalsin, A. Yu.1,2 (AUTHOR), Vlasov, D. V.1 (AUTHOR), Kulesh, M. M.1 (AUTHOR) |
| Source: | Optics & Spectroscopy. Jun2025, Vol. 133 Issue 1-6, p20-26. 7p. |
| Subjects: | Optical properties, Optical parametric oscillators, Optical coatings, Laser-induced breakdown spectroscopy, Niobium oxide, Silica |
| Abstract: | Dielectric mirrors with an oxide coating for a parametric light generator based on a ZnGeP2 single crystal were fabricated. The threshold values of laser-induced breakdown of dielectric mirrors made for single-pass (no. 1) and multi-pass (no. 2) resonators (3.5 ± 0.1 and 3.9 ± 0.1 J/cm2, respectively) are determined. Based on the obtained data, the mirrors were tested in the OPO system based on the ZnGeP2 single crystal. The maximum generation efficiency achieved in the experiment was ~54% when using mirror no. 1 and 50% when using mirror no. 2. In this case, the average power of the generated OPO radiation was 7.7 and 3.7 W when using mirror no. 1 and mirrors no. 2, respectively. The possibility of creating a dielectric mirror with high radiation strength operating in the range of 3.5–5 μm on a sapphire substrate is shown. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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