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Integrated Optical Filter Using Spiral-Based Cascaded Mach-Zehnder Interferometers
Ge, Zhiqiang1,2,3,5; Zeng, Chao1; Gong, Yongkang4; Zhang, Lingxuan1; Wang, Guoxi1,5; Wang, Leiran1,5; Sun, Qibing1; Si, Jinhai2,3; Zhao, Wei1,5; Zhang, Wenfu1,5
Department瞬态光学研究室
2019-10
Source PublicationIEEE PHOTONICS JOURNAL
ISSN1943-0655;1943-0647
Volume11Issue:5
Contribution Rank1
Abstract

We have proposed a new compact integrated optical filter based on cascaded Mach-Zehnder interferometers (MZIs), and designed corresponding coupling structures without S-bend. The wavelength dependence and fabrication tolerance of coupling structures constructed in straight waveguides and bent waveguides were sufficiently analyzed by the finite-difference time-domain (FDTD) method. The results showed that the curved coupler possesses property of broadband with large fabrication tolerance. Specifically, for the presented 3 dB coupler incorporated with the asymmetric curved waveguides, the deviation of transmission remained below 2% at wavelength from 1.5 to 1.6 mu m, which is greatly helpful to broadband spectral response of cascaded MZIs. By connecting curved couplers with spiral waveguides, a filter by means of two-stages cascaded MZIs was optimally demonstrated to realize a channel spacing of 10 nm. The spiral-based MZIs filter (SBMF) provides a new reference for MZIs filter limited by footprint and wavelength dependence.

KeywordCascaded Mach-Zehnder interferometers curved coupler filter spiral waveguide wavelength-division demultiplexers wavelength dependence
DOI10.1109/JPHOT.2019.2940564
Indexed BySCI ; EI
Language英语
WOS IDWOS:000495093900001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI Accession Number20200207984380
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31914
Collection瞬态光学研究室
Corresponding AuthorZhang, Wenfu
Affiliation1.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Key Lab Phys Elect & Devices, Minist Educ, Xian 710049, Shaanxi, Peoples R China
3.Xi An Jiao Tong Univ, Shaanxi Key Lab Informat Photon Tech, Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
4.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ge, Zhiqiang,Zeng, Chao,Gong, Yongkang,et al. Integrated Optical Filter Using Spiral-Based Cascaded Mach-Zehnder Interferometers[J]. IEEE PHOTONICS JOURNAL,2019,11(5).
APA Ge, Zhiqiang.,Zeng, Chao.,Gong, Yongkang.,Zhang, Lingxuan.,Wang, Guoxi.,...&Zhang, Wenfu.(2019).Integrated Optical Filter Using Spiral-Based Cascaded Mach-Zehnder Interferometers.IEEE PHOTONICS JOURNAL,11(5).
MLA Ge, Zhiqiang,et al."Integrated Optical Filter Using Spiral-Based Cascaded Mach-Zehnder Interferometers".IEEE PHOTONICS JOURNAL 11.5(2019).
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