题名 | Dispersion-flattened concentric structure for microcomb bandwidth broadening in GaP-OI resonators |
作者 | |
发表日期 | 2023-03-01
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DOI | |
发表期刊 | |
ISSN | 0740-3224
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EISSN | 1520-8540
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卷号 | 40期号:3页码:673-681 |
摘要 | We propose and theoretically investigate the coupled concentric ring resonators on a thickness-constrained GaP on insulator (GaP-OI) integrated photonic platform. Achieving anomalous dispersion is fulfilled by mode hybridization in the coupled structure on a 200 nm thick GaP-OI resonator which originally only exhibits normal dispersion for the fundamental mode. The anomalous dispersion profile for the anti-symmetric mode is flattened and broadened in favor of Kerr frequency comb generation by optimizing the waveguide width and the coupling gap size synergistically. We show the flexibility of this design methodology by simultaneously flattening the dispersion profile while anchoring the dispersion peak location at 1550 nm. The optimized design has a flat anomalous dispersion span of 460 nm with a small peak of 160 ps/km/nm, 1.69 times lower than a traditional rectangular waveguide. The engineered dispersion profile enables a broadband Kerr frequency comb generation that has a 3 dB bandwidth of 67 nm and a 20 dB bandwidth of over 250 nm at both 1550 and 1650 nm pump wavelengths. The proposed design proves useful to achieve broad and flat anomalous dispersion on thickness-constrained materials, paving the way towards low-loss GaP-OI frequency comb resonators. |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
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学校署名 | 第一
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资助项目 | Basic and Applied Basic Research Foundation of Guangdong Province["2021B1515120074","2023A1515012141"]
; Open Project Program of Wuhan National Laboratory for Optoelectronics[2021WNLOKF001]
; National Natural Science Foundation of China[62205137]
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WOS研究方向 | Optics
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WOS类目 | Optics
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WOS记录号 | WOS:000955809900007
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出版者 | |
EI入藏号 | 20231513882794
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EI主题词 | Bandwidth
; Dispersion (waves)
; Waveguides
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EI分类号 | Waveguides:714.3
; Information Theory and Signal Processing:716.1
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ESI学科分类 | PHYSICS
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来源库 | 人工提交
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全文链接 | https://opg.optica.org/josab/abstract.cfm?uri=josab-40-3-673 |
出版状态 | 正式出版
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引用统计 |
被引频次[WOS]:5
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成果类型 | 期刊论文 |
条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/503982 |
专题 | 工学院_深港微电子学院 |
作者单位 | School of Microelectronics, MOE Engineering Research Center of Integrated Circuits for Next Generation Communications, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China |
第一作者单位 | 深港微电子学院 |
第一作者的第一单位 | 深港微电子学院 |
推荐引用方式 GB/T 7714 |
Zhaoting Geng,Houling Ji,Zhuoyu Yu,et al. Dispersion-flattened concentric structure for microcomb bandwidth broadening in GaP-OI resonators[J]. Journal of Optical Society of America B,2023,40(3):673-681.
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APA |
Zhaoting Geng.,Houling Ji.,Zhuoyu Yu.,Weiren Cheng.,Pengzhuo Wu.,...&Qiancheng Zhao.(2023).Dispersion-flattened concentric structure for microcomb bandwidth broadening in GaP-OI resonators.Journal of Optical Society of America B,40(3),673-681.
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MLA |
Zhaoting Geng,et al."Dispersion-flattened concentric structure for microcomb bandwidth broadening in GaP-OI resonators".Journal of Optical Society of America B 40.3(2023):673-681.
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条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | 操作 | |
Geng et al_2023_Disp(4091KB) | -- | -- | 限制开放 | -- |
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