Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules
High-quality lithium niobate (LN) thin-film microresonators provide an ideal platform for on-chip nonlinear optical applications. The strict phase-matching condition should be satisfied for an efficient nonlinear optical process, which requires dispersion engineering with an LN microresonator. Howev...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab97ea |
| _version_ | 1797750438788857856 |
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| author | Min Wang Ni Yao Rongbo Wu Zhiwei Fang Shilong Lv Jianhao Zhang Jintian Lin Wei Fang Ya Cheng |
| author_facet | Min Wang Ni Yao Rongbo Wu Zhiwei Fang Shilong Lv Jianhao Zhang Jintian Lin Wei Fang Ya Cheng |
| author_sort | Min Wang |
| collection | DOAJ |
| description | High-quality lithium niobate (LN) thin-film microresonators provide an ideal platform for on-chip nonlinear optical applications. The strict phase-matching condition should be satisfied for an efficient nonlinear optical process, which requires dispersion engineering with an LN microresonator. However, this is challenging in single microresonator, resulting from the fabrication error. Here, we demonstrate strong nonlinear effects in a photonic molecule (PM) structure composed of two strongly coupled lithium niobate microdisks. The size mismatch of the microdisks enables phase matching by employing coupling-induced frequency splitting to compensate for the material and geometric dispersion. With a continuous wave excitation, rich nonlinear optical phenomena including cascaded four-wave mixing and stimulated Raman scattering were observed around the second harmonic signal. Meanwhile, an ultra-high four-wave mixing absolute conversion efficiency of 14% as obtained when the second harmonic signal power is at microwatts level. The LN PM is of great potential for applications in nonlinear integrated photonics. |
| first_indexed | 2024-03-12T16:33:43Z |
| format | Article |
| id | doaj.art-b17c345f4e2c42c1b940bd9c9e271502 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:33:43Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b17c345f4e2c42c1b940bd9c9e2715022023-08-08T15:23:52ZengIOP PublishingNew Journal of Physics1367-26302020-01-0122707303010.1088/1367-2630/ab97eaStrong nonlinear optics in on-chip coupled lithium niobate microdisk photonic moleculesMin Wang0https://orcid.org/0000-0002-2410-9495Ni Yao1Rongbo Wu2Zhiwei Fang3Shilong Lv4Jianhao Zhang5Jintian Lin6Wei Fang7Ya Cheng8https://orcid.org/0000-0001-8269-5907State Key Laboratory of Precision Spectroscopy, East China Normal University , Shanghai 200062, People’s Republic of China; XXL—The Extreme Optoelectromechanics Laboratory, School of Physics and Materials Science, East China Normal University , Shanghai 200241, People’s Republic of ChinaInterdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University , Hangzhou 310027, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University , Shanghai 200062, People’s Republic of China; XXL—The Extreme Optoelectromechanics Laboratory, School of Physics and Materials Science, East China Normal University , Shanghai 200241, People’s Republic of ChinaShanghai Institute of Microsystem and Information Technology , Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; CAS Center for Excellence in Ultra-intense Laser Science , Shanghai 201800, People’s Republic of ChinaInterdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University , Hangzhou 310027, People’s Republic of ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University , Shanghai 200062, People’s Republic of China; XXL—The Extreme Optoelectromechanics Laboratory, School of Physics and Materials Science, East China Normal University , Shanghai 200241, People’s Republic of China; State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; CAS Center for Excellence in Ultra-intense Laser Science , Shanghai 201800, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan 030006, People’s Republic of China; Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University , Jinan 250358, People’s Republic of China; Shanghai Research Center for Quantum Sciences , Shanghai 201315, People’s Republic of ChinaHigh-quality lithium niobate (LN) thin-film microresonators provide an ideal platform for on-chip nonlinear optical applications. The strict phase-matching condition should be satisfied for an efficient nonlinear optical process, which requires dispersion engineering with an LN microresonator. However, this is challenging in single microresonator, resulting from the fabrication error. Here, we demonstrate strong nonlinear effects in a photonic molecule (PM) structure composed of two strongly coupled lithium niobate microdisks. The size mismatch of the microdisks enables phase matching by employing coupling-induced frequency splitting to compensate for the material and geometric dispersion. With a continuous wave excitation, rich nonlinear optical phenomena including cascaded four-wave mixing and stimulated Raman scattering were observed around the second harmonic signal. Meanwhile, an ultra-high four-wave mixing absolute conversion efficiency of 14% as obtained when the second harmonic signal power is at microwatts level. The LN PM is of great potential for applications in nonlinear integrated photonics.https://doi.org/10.1088/1367-2630/ab97eaphotonic moleculesstrong couplingRabi-splittingfour-wave mixing |
| spellingShingle | Min Wang Ni Yao Rongbo Wu Zhiwei Fang Shilong Lv Jianhao Zhang Jintian Lin Wei Fang Ya Cheng Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules New Journal of Physics photonic molecules strong coupling Rabi-splitting four-wave mixing |
| title | Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules |
| title_full | Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules |
| title_fullStr | Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules |
| title_full_unstemmed | Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules |
| title_short | Strong nonlinear optics in on-chip coupled lithium niobate microdisk photonic molecules |
| title_sort | strong nonlinear optics in on chip coupled lithium niobate microdisk photonic molecules |
| topic | photonic molecules strong coupling Rabi-splitting four-wave mixing |
| url | https://doi.org/10.1088/1367-2630/ab97ea |
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