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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2406.02137 |
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| _version_ | 1866914823002914816 |
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| author | Yuan, Tingge Wu, Jiangwei Wang, Xueyi Li, Hao Chen, Yuping Chen, Xianfeng |
| author_facet | Yuan, Tingge Wu, Jiangwei Wang, Xueyi Li, Hao Chen, Yuping Chen, Xianfeng |
| contents | On-chip quantum information network requires qubit transfer between different wavelengths while preserving quantum coherence and entanglement, which needs broadband up-conversion available. Herein, we demonstrate a mode-hybridization based broadband nonlinear frequency conversion on X-cut thin film lithium niobate. With the spontaneous quasi-phase matching and quasi groupvelocity matching being simultaneously satisfied, broadband second harmonic generation with a 3-dB bandwidth up to 13 nm has been achieved in a micro-racetrack resonator. The same mechanism can work on the frequency conversion of the ultra-short pulse in the bent waveguide structure. This work will be beneficial to on-chip tunable frequency conversion and quantum light source generation on integrated photonic platforms, and further enable on-chip large-capacity multiplexing, multichannel optical information processing, and large quantum information networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_02137 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Enhanced Nonlinear Frequency Conversion Bandwidth through Birefringence induced Mode Hybridization Yuan, Tingge Wu, Jiangwei Wang, Xueyi Li, Hao Chen, Yuping Chen, Xianfeng Optics On-chip quantum information network requires qubit transfer between different wavelengths while preserving quantum coherence and entanglement, which needs broadband up-conversion available. Herein, we demonstrate a mode-hybridization based broadband nonlinear frequency conversion on X-cut thin film lithium niobate. With the spontaneous quasi-phase matching and quasi groupvelocity matching being simultaneously satisfied, broadband second harmonic generation with a 3-dB bandwidth up to 13 nm has been achieved in a micro-racetrack resonator. The same mechanism can work on the frequency conversion of the ultra-short pulse in the bent waveguide structure. This work will be beneficial to on-chip tunable frequency conversion and quantum light source generation on integrated photonic platforms, and further enable on-chip large-capacity multiplexing, multichannel optical information processing, and large quantum information networks. |
| title | Enhanced Nonlinear Frequency Conversion Bandwidth through Birefringence induced Mode Hybridization |
| topic | Optics |
| url | https://arxiv.org/abs/2406.02137 |