Compact, Broadband, and Wide-Angle Optical Coupling for Silicon   Waveguide

doi:10.1109/JPHOT.2012.2226875

CORC > 北京大学 > 信息科学技术学院

	Compact, Broadband, and Wide-Angle Optical Coupling for Silicon Waveguide
	Li, Kun ; Li, Guangyuan ; Lu, Fan ; Xu, Anshi
刊名	ieee photonics journal
	2012
关键词	Gratings engineered photonic nanostructures micro and nano antennas GRATING COUPLERS EFFICIENCY MICROSCOPE DESIGN FIBERS
DOI	10.1109/JPHOT.2012.2226875
英文摘要	A novel grating coupling scheme with simultaneously broadband and wide-angle efficiency for unidirectionally coupling freely propagating light into a silicon waveguide is proposed and theoretically investigated. The coupling structure is composed of two cascaded subgratings with proper spectral and angular intervals. A semi-analytical theory based on coupled-mode model is developed to facilitate the design. Proof-of-principle demonstrations show that the spectral and angular full-width half-maximums (FWHMs) are simultaneously broadened to nearly three times at a specific wavelength or incidence angle, compared with the reference grating of the same number of periodic features. The spectral FWHM reaches 200 nm, covering E + S + C or C + L + U communication bands, and meanwhile, the angular FWHM is up to 8 degrees; if the spectral FWHM is diminished to 40 nm only covering C band, the angular FWHM will be as large as 40 degrees. This paper may be of great interest in related applications such as biochemical sensing and optical interconnect.; Engineering, Electrical & Electronic; Optics; Physics, Applied; SCI(E); EI; 2; ARTICLE; 6; 2116-2125; 4
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152410]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Kun,Li, Guangyuan,Lu, Fan,et al. Compact, Broadband, and Wide-Angle Optical Coupling for Silicon Waveguide[J]. ieee photonics journal,2012.
APA	Li, Kun,Li, Guangyuan,Lu, Fan,&Xu, Anshi.(2012).Compact, Broadband, and Wide-Angle Optical Coupling for Silicon Waveguide.ieee photonics journal.
MLA	Li, Kun,et al."Compact, Broadband, and Wide-Angle Optical Coupling for Silicon Waveguide".ieee photonics journal (2012).