| Broadband and efficient second harmonic generation in LiNbO3-LiTaO3 composite ridge waveguides at telecom-band |
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| 作者姓名： | 张欣桐 |
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| 作者单位： | Department of Optics and Optical Engineering |
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| 摘 要： | Broadband nonlinear frequency conversions of optical waves are widely employed in multiple areas of optics and photonics. However, the broadening of conversion bandwidth is often at a cost of reduction in efficiency, which may induce a limitation on practical applications. Here we theoretically propose a novel design of LiNbO3 ridge waveguides on LiTaO3 substrates which can be used for efficient and broadband second harmonic generation. Through group velocity engineering of the ridge waveguides, acceptance bandwidth over 20 nm with a high conversion efficiency of > 25%W-1·cm-2 is achieved at telecom-band.
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| 关 键 词： | second harmonic generation lithium niobate ridge waveguide dispersion manipulation |
Broadband and efficient second harmonic generation in LiNbO_3-LiTaO_3 composite ridge waveguides at telecom-band |
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| Xin-Tong Zhang.Broadband and efficient second harmonic generation in LiNbO3-LiTaO3 composite ridge waveguides at telecom-band[J].Chinese Physics B,2021(1). |
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| Authors: | Xin-Tong Zhang |
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| Affiliation: | (Department of Optics and Optical Engineering,University of Science and Technology of China,Hefei 230026,China) |
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