Electrically tuned coupling of lithium niobate microresonators
Microresonators coupled with integrated waveguides operate stably but usually lack tunability for an optimal coupling state. In this Letter, we demonstrate a racetrack resonator with an electrically modulated coupling on an X-cut lithium niobate (LN) platform by introducing a Mach-Zehnder interferom...
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| Veröffentlicht in: | Optics letters 2023-05, Vol.48 (10), p.2744-2747 |
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| container_issue | 10 |
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| container_title | Optics letters |
| container_volume | 48 |
| creator | Jia, Di Zhang, Ru Yang, Chen Hao, Zhenzhong Yu, Xuanyi Gao, Feng Bo, Fang Zhang, Guoquan Xu, Jingjun |
| description | Microresonators coupled with integrated waveguides operate stably but usually lack tunability for an optimal coupling state. In this Letter, we demonstrate a racetrack resonator with an electrically modulated coupling on an X-cut lithium niobate (LN) platform by introducing a Mach-Zehnder interferometer (MZI) with two balanced directional couplers (DCs) to realize light exchange. This device provides a wide-range coupling regulation, from under-coupling and critical coupling to deep over-coupling. Importantly, it has a fixed resonance frequency when the DC splitting ratio is 3 dB. The measured optical responses of the resonator exhibit a high extinction ratio, exceeding 23 dB, and an effective half-wave voltage length V
·L of 0.77 V·cm, suitable for CMOS compatibility. Microresonators with tunable coupling and a stable resonance frequency are expected to find application in nonlinear optical devices on LN-integrated optical platforms. |
| doi_str_mv | 10.1364/OL.488974 |
| format | Article |
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·L of 0.77 V·cm, suitable for CMOS compatibility. Microresonators with tunable coupling and a stable resonance frequency are expected to find application in nonlinear optical devices on LN-integrated optical platforms.</description><subject>Coupling</subject><subject>Directional couplers</subject><subject>Lithium niobates</subject><subject>Mach-Zehnder interferometers</subject><subject>Nonlinear optics</subject><subject>Resonance</subject><subject>Resonators</subject><subject>Waveguides</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpd0DtPwzAUBWALgWgpDPwBFIkFhhS_HS9IqCoPKVIWmCPHscGVExc7GfrvCbQwMN3l09G5B4BLBJeIcHpXlUtaFFLQIzBHjMicCkmPwRwiynPJJJ6Bs5Q2EEIuCDkFMyJQwQVjc3C_9kYP0Wnl_S4bxt60mQ7j1rv-PQs28274cGOX9S40ajBZ53QM0aTQqyHEdA5OrPLJXBzuArw9rl9Xz3lZPb2sHspcE0SGvJANprBlrMAt57LlrebKMIOnnpBILKAgiAmLjZHMCowVJJhSIhooLLWYLMDNPncbw-do0lB3LmnjvepNGFONC0QZlpDBiV7_o5swxn5q96OkgEzwSd3u1fROStHYehtdp-KuRrD-HrWuyno_6mSvDolj05n2T_6uSL4A9hZvfA</recordid><startdate>20230515</startdate><enddate>20230515</enddate><creator>Jia, Di</creator><creator>Zhang, Ru</creator><creator>Yang, Chen</creator><creator>Hao, Zhenzhong</creator><creator>Yu, Xuanyi</creator><creator>Gao, Feng</creator><creator>Bo, Fang</creator><creator>Zhang, Guoquan</creator><creator>Xu, Jingjun</creator><general>Optical Society of America</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-6130-5316</orcidid><orcidid>https://orcid.org/0000-0002-7725-4282</orcidid><orcidid>https://orcid.org/0000-0002-8853-0123</orcidid></search><sort><creationdate>20230515</creationdate><title>Electrically tuned coupling of lithium niobate microresonators</title><author>Jia, Di ; Zhang, Ru ; Yang, Chen ; Hao, Zhenzhong ; Yu, Xuanyi ; Gao, Feng ; Bo, Fang ; Zhang, Guoquan ; Xu, Jingjun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c313t-89b240d5582d669d6dc6ae5e279403927073157f2ee95f722a0324437b07f4f23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Coupling</topic><topic>Directional couplers</topic><topic>Lithium niobates</topic><topic>Mach-Zehnder interferometers</topic><topic>Nonlinear optics</topic><topic>Resonance</topic><topic>Resonators</topic><topic>Waveguides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jia, Di</creatorcontrib><creatorcontrib>Zhang, Ru</creatorcontrib><creatorcontrib>Yang, Chen</creatorcontrib><creatorcontrib>Hao, Zhenzhong</creatorcontrib><creatorcontrib>Yu, Xuanyi</creatorcontrib><creatorcontrib>Gao, Feng</creatorcontrib><creatorcontrib>Bo, Fang</creatorcontrib><creatorcontrib>Zhang, Guoquan</creatorcontrib><creatorcontrib>Xu, Jingjun</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jia, Di</au><au>Zhang, Ru</au><au>Yang, Chen</au><au>Hao, Zhenzhong</au><au>Yu, Xuanyi</au><au>Gao, Feng</au><au>Bo, Fang</au><au>Zhang, Guoquan</au><au>Xu, Jingjun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrically tuned coupling of lithium niobate microresonators</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2023-05-15</date><risdate>2023</risdate><volume>48</volume><issue>10</issue><spage>2744</spage><epage>2747</epage><pages>2744-2747</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><abstract>Microresonators coupled with integrated waveguides operate stably but usually lack tunability for an optimal coupling state. In this Letter, we demonstrate a racetrack resonator with an electrically modulated coupling on an X-cut lithium niobate (LN) platform by introducing a Mach-Zehnder interferometer (MZI) with two balanced directional couplers (DCs) to realize light exchange. This device provides a wide-range coupling regulation, from under-coupling and critical coupling to deep over-coupling. Importantly, it has a fixed resonance frequency when the DC splitting ratio is 3 dB. The measured optical responses of the resonator exhibit a high extinction ratio, exceeding 23 dB, and an effective half-wave voltage length V
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| language | eng |
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| source | Optica Publishing Group Journals |
| subjects | Coupling Directional couplers Lithium niobates Mach-Zehnder interferometers Nonlinear optics Resonance Resonators Waveguides |
| title | Electrically tuned coupling of lithium niobate microresonators |
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