Improving Linewidth and Extinction Ratio Performances of Lithium Niobate Ring Modulator Using Ring‐Pair Structure
Electro‐optic modulators lie at the heart of complex integration and high‐density electro‐optic systems. One of the representative electro‐optic modulators is thin‐film lithium niobate‐based microring modulator which has demonstrated advantages of compact footprint, low optical loss, and high modulation efficiency. However, the linewidth and extinction ratio of ring modulators are fundamentally limited by the ring losses and coupling, respectively. To this end, a novel type of electro‐optic modulators with ring‐pair structure on thin‐film lithium niobate platform is proposed, which brings substantial improvement of linewidth and extinction ratio. The ring‐pair modulator exhibits a larger linewidth up to 22 GHz, 1.74 times larger than that of the single‐ring resonator with same design parameters. Moreover, the experimental results also reveal that the added‐up extinction ratio of ring‐pair resonator goes beyond 30 dB, much larger than that in an individual ring resonator. These advantages of ring‐pair modulators pave a new way for the application of compact ring‐based modulators with large working wavelength window and high extinction ratio, to be exploited in quantum optics, programmable nanophotonics and optical sensors, etc.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Improving Linewidth and Extinction Ratio Performances of Lithium Niobate Ring Modulator Using Ring‐Pair Structure ; day:22 ; month:06 ; year:2023 ; extent:6
Advanced photonics research ; (22.06.2023) (gesamt 6)
- Creator
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Hou, Songyan
Hu, Hao
Xing, Weichuan
Liu, Zhihong
Zhang, Jincheng
Hao, Yue
- DOI
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10.1002/adpr.202300169
- URN
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urn:nbn:de:101:1-2023062315160204139884
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:56 AM CEST
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Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Hou, Songyan
- Hu, Hao
- Xing, Weichuan
- Liu, Zhihong
- Zhang, Jincheng
- Hao, Yue
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