On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings

doi:10.1364/PRJ.510899

	On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings
	Wang, Jinzhao 1; Li, Ting2 ; Feng, Yang 1; Li, Jiewen 1; Li, Wanxin 1; Ding, Luwei 1; Yao, Yong 1; Duan, Jianan 1; Liu, Wei 1; He, Feng 1; Zou, Yi2 ; Xu, Xiaochuan 1
	2024-05-01
发表期刊	PHOTONICS RESEARCH (IF:6.6[JCR-2023],6.6[5-Year])
ISSN	2327-9125
卷号	12 期号:5 页码:979-985
发表状态	已发表
DOI	10.1364/PRJ.510899
摘要	Bragg filters are of essential importance for chip-scale photonic systems. However, the implementation of filters with sub-nanometer bandwidth and rejection beyond 70 dB is hindered by the high index contrast of the silicon-on-insulator platform, which makes filters prone to fabrication imperfections. In this paper, we propose to combine coherency-broken cascading architecture and cladding modulation to circumvent the intrinsic limitation. The cascading architecture effectively prevents the accumulation of phase errors, while the cladding modulation offers additional design freedom to reduce the coupling coefficient. A bimodal Bragg filter with a testing-equipment-limited rejection level of 74 dB and a 40 dB bandwidth of 0.44 nm is experimentally demonstrated. The minimum feature size is 90 nm, which significantly relieves the fabrication constraints. © 2024 Chinese Laser Press © 2024 Optica Publishing Group (formerly OSA). All rights reserved.
关键词	Cladding (coating) Silicon on insulator technology Bandwidth filters Bragg filters Chip-scale Cladding modulation Filter-based Narrow bandwidth On chips Photonic systems Rejection bandwidth Ultra-high
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收录类别	EI ; SCI
语种	英语
资助项目	Basic and Applied Basic Research Foundation of Guangdong Province["2020B1515130006","2021B515120056","2023A1515011944"] ; Science, Technology and Innovation Commission of Shenzhen Municipality["JCYJ20210324131614040","JCYJ20220531095604009"] ; National Natural Science Foundation of China[U22A2093]
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:001240409800011
出版者	Optica Publishing Group (formerly OSA)
EI入藏号	20242016074420
EI主题词	Bandwidth
EI分类号	714.2 Semiconductor Devices and Integrated Circuits ; 716.1 Information Theory and Signal Processing
原始文献类型	Journal article (JA)
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/375718
专题	信息科学与技术学院信息科学与技术学院_PI研究组_邹毅组信息科学与技术学院_博士生
通讯作者	Xu, Xiaochuan
作者单位	1.Guangdong Provincial Key Laboratory of Integrated Photonic-Electronic Chip, Guangdong Provincial Key Laboratory of Aerospace Communication and Networking Technology, Harbin Institute of Technology, Shenzhen, Shenzhen; 518055, China; 2.School of Information Science and Technology, ShanghaiTech University, Shanghai; 201210, China
推荐引用方式 GB/T 7714	Wang, Jinzhao,Li, Ting,Feng, Yang,et al. On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings[J]. PHOTONICS RESEARCH,2024,12(5):979-985.
APA	Wang, Jinzhao.,Li, Ting.,Feng, Yang.,Li, Jiewen.,Li, Wanxin.,...&Xu, Xiaochuan.(2024).On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings.PHOTONICS RESEARCH,12(5),979-985.
MLA	Wang, Jinzhao,et al."On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings".PHOTONICS RESEARCH 12.5(2024):979-985.