Design of a low-crosstalk half-wavelength pitch nano-structured silicon waveguide array

doi:10.1364/OL.44.003266

	Design of a low-crosstalk half-wavelength pitch nano-structured silicon waveguide array
	Wang, Liping 1,2,3; Chen, Ze 1,2,3; Wang, Hongfei 1,2,3; Liu, Ang 1,2,3; Wang, Peng 1,2,3; Lin, Tianying 1,2,3; Liu, Xiaoping 1,2,3; Lv, Haibin 4
	2019-07
发表期刊	OPTICS LETTERS (IF:3.1[JCR-2023],3.1[5-Year])
ISSN	0146-9592
卷号	44 期号:13 页码:3266-3269
发表状态	已发表
DOI	10.1364/OL.44.003266
摘要	An ultra-compact half-wavelength pitch silicon waveguide array with very low crosstalk is proposed and analyzed in this work. We first show the design of a pair of low-crosstalk silicon waveguides with only half-wavelength spacing, where the placement of two thin silicon strips asymmetrically in between the waveguides is key to having very low crosstalk. We next extend this nano-structured two-waveguide design to form a low-crosstalk half-wavelength pitch silicon waveguide array. Coupled-mode theory shows that, for an array length of 1 mm, the insertion loss of the input waveguide is as low as -0.13 dB for the TE-like mode at 1550 nm, and the crosstalk in all other waveguides remains below about -18 dB. This half-wavelength pitch waveguide array also exhibits a favorable fabrication error tolerance when taking into account the waveguide width variations in practice. It offers a promising platform for realization of integrated optical phased arrays for solid-state lidars with a large field of view. (C) 2019 Optical Society of America
收录类别	EI ; SCIE ; SCI
语种	英语
资助项目	Fundamental Research Funds for the Central Universities[021314380100]
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000473320900021
出版者	OPTICAL SOC AMER
EI入藏号	20192707145992
EI主题词	Nanostructures ; Silicon ; Waveguides
EI分类号	Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Waveguides:714.3 ; Nanotechnology:761 ; Solid State Physics:933
WOS关键词	OPTICAL PHASED-ARRAY ; COUPLED-MODE THEORY ; LIGHT ; SUPERLATTICES ; ROUGHNESS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/57603
专题	物质科学与技术学院
通讯作者	Liu, Xiaoping
作者单位	1.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Wang, Liping,Chen, Ze,Wang, Hongfei,et al. Design of a low-crosstalk half-wavelength pitch nano-structured silicon waveguide array[J]. OPTICS LETTERS,2019,44(13):3266-3269.
APA	Wang, Liping.,Chen, Ze.,Wang, Hongfei.,Liu, Ang.,Wang, Peng.,...&Lv, Haibin.(2019).Design of a low-crosstalk half-wavelength pitch nano-structured silicon waveguide array.OPTICS LETTERS,44(13),3266-3269.
MLA	Wang, Liping,et al."Design of a low-crosstalk half-wavelength pitch nano-structured silicon waveguide array".OPTICS LETTERS 44.13(2019):3266-3269.