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Coupled-mode characteristics of coupled-microdisks and single microdisk cavity with an output waveguide
Wang, Jiaxian; Li, Junjie; Wu, Wenguang; Huang, Yongzhen,; Wang, J.(wangjx@hqu.edu.cn)
2011
Source PublicationGuangxue Xuebao/Acta Optica Sinica
ISSN02532239
Volume31Issue:1Pages:106006
AbstractThe optical microresonators with high Q factor and ultra-small mode volume have attracted great attentions for applications in optoelectronic devices. For a coupled-microdisks and a single microdisk connected with an output waveguide, coupled mode characteristics resulting from the structure asymmetry are investigated by the finite-difference time-domain(FDTD) method and the Pade′ approximation. Mode field patterns and mode Q factors are calculated, and the relative energies of mode-field components with different angular wave numbers are estimated from the coupled mode-field distribution. For coupled microdisk resonator, the higher-order modes introduced by the mode coupling usually reduces the mode Q factor of the coupled mode greatly. For a single microdisk resonator with a radius of1μm and a refractive index of3.2 connected with a0.2-μm-wide output waveguide, a coupled mode at the wavelength of1.52μm is observed with the mode Q factor of268 and a triangle mode-field pattern, which is the coupled mode between whispering-gallery modes TE9,1 and TE6,2 with a wavelength difference of6.6 nm.
metadata_83光电子研究发展中心
KeywordAngular Distribution Finite Difference Time Domain Method Optical Resonators Optoelectronic Devices Refractive Index Waveguides
Subject Area光电子学
Indexed ByEI
Language中文
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23101
Collection光电子研究发展中心
Corresponding AuthorWang, J.(wangjx@hqu.edu.cn)
Recommended Citation
GB/T 7714
Wang, Jiaxian,Li, Junjie,Wu, Wenguang,et al. Coupled-mode characteristics of coupled-microdisks and single microdisk cavity with an output waveguide[J]. Guangxue Xuebao/Acta Optica Sinica,2011,31(1):106006.
APA Wang, Jiaxian,Li, Junjie,Wu, Wenguang,Huang, Yongzhen,,&Wang, J..(2011).Coupled-mode characteristics of coupled-microdisks and single microdisk cavity with an output waveguide.Guangxue Xuebao/Acta Optica Sinica,31(1),106006.
MLA Wang, Jiaxian,et al."Coupled-mode characteristics of coupled-microdisks and single microdisk cavity with an output waveguide".Guangxue Xuebao/Acta Optica Sinica 31.1(2011):106006.
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