Mutual-Coupling in High-Q Silicon Dual-Concentric Micro-Ring/Racetrack Resonator
Micro-ring resonator (MRR) is a key element in integrated optics. The mutual-coupling in dual-concentric MRR has great influence on the resonance output. In this work, high-Q silicon dual-concentric MRR and racetrack resonator have been investigated by the coupled mode theory. The theoretical model...
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| Veröffentlicht in: | IEEE photonics journal 2022-08, Vol.14 (4), p.1-7 |
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| creator | Xu, Yan Liu, Tingyu Liu, Songyue Sun, Xiaoqiang Zhang, Daming |
| description | Micro-ring resonator (MRR) is a key element in integrated optics. The mutual-coupling in dual-concentric MRR has great influence on the resonance output. In this work, high-Q silicon dual-concentric MRR and racetrack resonator have been investigated by the coupled mode theory. The theoretical model is built to explain and alleviate the phenomenon of resonance splitting. CMOS fabrication is adopted for the preparation of dual-concentric MRR and racetrack resonators. The highest Q-factors of dual-concentric MRR and racetrack resonator are measured to be ∼9.00 × 10 4 at 1530.783 nm and ∼7.32 × 10 4 at 1536.596 nm, respectively. The notch depth improvement over 20 dB has been demonstrated on the 5-μm-radius double-ring structure. The experimental results prove that the asymmetry of resonance splitting can be tuned by adjusting the distance between the inner-ring and outer-ring, as well as the waveguide width. The proposed work has potentials in the design and optimization of dual-concentric ring resonators. |
| doi_str_mv | 10.1109/JPHOT.2022.3186914 |
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The mutual-coupling in dual-concentric MRR has great influence on the resonance output. In this work, high-Q silicon dual-concentric MRR and racetrack resonator have been investigated by the coupled mode theory. The theoretical model is built to explain and alleviate the phenomenon of resonance splitting. CMOS fabrication is adopted for the preparation of dual-concentric MRR and racetrack resonators. The highest Q-factors of dual-concentric MRR and racetrack resonator are measured to be ∼9.00 × 10 4 at 1530.783 nm and ∼7.32 × 10 4 at 1536.596 nm, respectively. The notch depth improvement over 20 dB has been demonstrated on the 5-μm-radius double-ring structure. The experimental results prove that the asymmetry of resonance splitting can be tuned by adjusting the distance between the inner-ring and outer-ring, as well as the waveguide width. The proposed work has potentials in the design and optimization of dual-concentric ring resonators.</description><identifier>ISSN: 1943-0655</identifier><identifier>EISSN: 1943-0647</identifier><identifier>DOI: 10.1109/JPHOT.2022.3186914</identifier><identifier>CODEN: PJHOC3</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>CMOS ; Coupled modes ; Coupling ; Couplings ; Design optimization ; Integrated optics ; Micro-ring resonator ; Optical ring resonators ; Optical waveguides ; Q-factor ; racetrack resonator ; Racetracks ; Resonance ; Resonant frequency ; Resonators ; Ring structures ; Semiconductor device modeling ; Silicon ; silicon photonics ; Splitting ; Waveguides</subject><ispartof>IEEE photonics journal, 2022-08, Vol.14 (4), p.1-7</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The mutual-coupling in dual-concentric MRR has great influence on the resonance output. In this work, high-Q silicon dual-concentric MRR and racetrack resonator have been investigated by the coupled mode theory. The theoretical model is built to explain and alleviate the phenomenon of resonance splitting. CMOS fabrication is adopted for the preparation of dual-concentric MRR and racetrack resonators. The highest Q-factors of dual-concentric MRR and racetrack resonator are measured to be ∼9.00 × 10 4 at 1530.783 nm and ∼7.32 × 10 4 at 1536.596 nm, respectively. The notch depth improvement over 20 dB has been demonstrated on the 5-μm-radius double-ring structure. The experimental results prove that the asymmetry of resonance splitting can be tuned by adjusting the distance between the inner-ring and outer-ring, as well as the waveguide width. The proposed work has potentials in the design and optimization of dual-concentric ring resonators.</description><subject>CMOS</subject><subject>Coupled modes</subject><subject>Coupling</subject><subject>Couplings</subject><subject>Design optimization</subject><subject>Integrated optics</subject><subject>Micro-ring resonator</subject><subject>Optical ring resonators</subject><subject>Optical waveguides</subject><subject>Q-factor</subject><subject>racetrack resonator</subject><subject>Racetracks</subject><subject>Resonance</subject><subject>Resonant frequency</subject><subject>Resonators</subject><subject>Ring structures</subject><subject>Semiconductor device modeling</subject><subject>Silicon</subject><subject>silicon photonics</subject><subject>Splitting</subject><subject>Waveguides</subject><issn>1943-0655</issn><issn>1943-0647</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNo9UctOwzAQjBBIlMIPwCUS57S2Eyf2EZVHi1q1lHK2HHtdXEJcnOTA3-M2qNJKXo1nZnc1UXSL0QhjxMevq-lyMyKIkFGKWc5xdhYNMM_SBOVZcX7qKb2Mrppmh1DgUD6IVouu7WSVTFy3r2y9jW0dT-32M3mL321llavjx_6_VlC33qp4YZV3yTqQx2upoPVSfcVraFwtW-evowsjqwZu_t9h9PH8tJlMk_nyZTZ5mCeKsLxNDKUmBQTalCkLa5fAAIMuGSYmoIoQIEZhXkjNIKNScaIz4IpyUpYay3QYzXpf7eRO7L39lv5XOGnFEXB-K6RvrapAhDHS5DovjNJZgUqmyjzTUhNVBIyS4HXfe-29--mgacXOdb4O6wuSM1YgQtGBRXpWOL9pPJjTVIzEIQVxTEEcUhD_KQTRXS-yAHAScIZCZekfYkuEhg</recordid><startdate>20220801</startdate><enddate>20220801</enddate><creator>Xu, Yan</creator><creator>Liu, Tingyu</creator><creator>Liu, Songyue</creator><creator>Sun, Xiaoqiang</creator><creator>Zhang, Daming</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | CMOS Coupled modes Coupling Couplings Design optimization Integrated optics Micro-ring resonator Optical ring resonators Optical waveguides Q-factor racetrack resonator Racetracks Resonance Resonant frequency Resonators Ring structures Semiconductor device modeling Silicon silicon photonics Splitting Waveguides |
| title | Mutual-Coupling in High-Q Silicon Dual-Concentric Micro-Ring/Racetrack Resonator |
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