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	Silicon-based asymmetric add-drop microring resonators with ultra-large through-port extinctions
	Xiao Xi; Li Yun-Tao; Yu Yu-De; Yu Jin-Zhong
刊名	Chinese physics letters
	2010-05-01
卷号	27期号:5页码:4
ISSN号	0256-307X
DOI	10.1088/0256-307x/27/5/054208
通讯作者	Xiao xi()
英文摘要	We theoretically simulate and experimentally demonstrate ultra-large through-port extinctions in silicon-based asymmetrically-coupled add-drop microring resonators (mrs). through-port responses in an add-drop mr are analyzed by simulations and large extinctions are found when the mr is near-critically coupled. accurate fabrication techniques are applied in producing a series of 20 mu m-radii add-drop microrings with drop-side gap-widths in slight differences. a through-port extinction of about 42.7 db is measured in an mr with through-and drop-side gap-width to be respectively 280 nm and 295 nm. the large extinction suggests about a 20.5 db improvement from the symmetrical add-drop mr of the same size and the through-side gap-width. the experimental results are finally compared with the post-fabrication simulations, which show a gap-width tolerance of > 30 nm for the through-port extinction enhancement.
WOS关键词	FILTERS ; BAND
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000277344700035
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427848
专题	半导体研究所
通讯作者	Xiao Xi
作者单位	Chinese Acad Sci, Inst Semicond, Natl Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Xiao Xi,Li Yun-Tao,Yu Yu-De,et al. Silicon-based asymmetric add-drop microring resonators with ultra-large through-port extinctions[J]. Chinese physics letters,2010,27(5):4.
APA	Xiao Xi,Li Yun-Tao,Yu Yu-De,&Yu Jin-Zhong.(2010).Silicon-based asymmetric add-drop microring resonators with ultra-large through-port extinctions.Chinese physics letters,27(5),4.
MLA	Xiao Xi,et al."Silicon-based asymmetric add-drop microring resonators with ultra-large through-port extinctions".Chinese physics letters 27.5(2010):4.

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