High system efficiency nonlinear frequency conversion on thin-film lithium niobate
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866914166541910016 |
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| author | Lohmann, Philipp Wendland, Daniel Lenzini, Francesco Pernice, Wolfram H. P. |
| author_facet | Lohmann, Philipp Wendland, Daniel Lenzini, Francesco Pernice, Wolfram H. P. |
| contents | Integrated photonic platforms can greatly enhance the efficiency of nonlinear frequency conversion processes by tightly confining light on a sub-micron scale. However, this advantage is often reduced by large fiber-to-chip coupling losses which drastically reduce the overall performance. Here we demonstrate a highly efficient thin-film lithium niobate frequency converter based on periodically poled waveguides combined with direct laser written out-of-plane couplers. Including on-chip and fiber-to-chip losses we obtain a conversion efficiency of 152 %/W, thus demonstrating a promising approach for future scalable integrated devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_17327 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High system efficiency nonlinear frequency conversion on thin-film lithium niobate Lohmann, Philipp Wendland, Daniel Lenzini, Francesco Pernice, Wolfram H. P. Optics Integrated photonic platforms can greatly enhance the efficiency of nonlinear frequency conversion processes by tightly confining light on a sub-micron scale. However, this advantage is often reduced by large fiber-to-chip coupling losses which drastically reduce the overall performance. Here we demonstrate a highly efficient thin-film lithium niobate frequency converter based on periodically poled waveguides combined with direct laser written out-of-plane couplers. Including on-chip and fiber-to-chip losses we obtain a conversion efficiency of 152 %/W, thus demonstrating a promising approach for future scalable integrated devices. |
| title | High system efficiency nonlinear frequency conversion on thin-film lithium niobate |
| topic | Optics |
| url | https://arxiv.org/abs/2511.17327 |