{"title":"A flat-top Arrayed Waveguide Grating base on cascading \"A\" shape Multimode Interference","authors":"Kanglu Zhou, Xiaochun Liu, Jialiang Zhang, Changshui Chen","doi":"10.1088/1361-6463/ad4372","DOIUrl":null,"url":null,"abstract":"\n To achieve spectrum flattening in the wavelength division multiplexing (WDM) device's arrayed waveguide grating (AWG), we have cascaded a special \"A\" shape multimode interference (MMI) structure at the end of the input waveguide. The MMI is designed by the linear spreading function (LSF), which increases the 1 dB bandwidth to 0.7 nm and the 3 dB bandwidth to 1.6 0.2 nm, the insertion loss is measured at 3.5±0.3 dB, and the channel crosstalk is below -30 dB.","PeriodicalId":507822,"journal":{"name":"Journal of Physics D: Applied Physics","volume":"10 10","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics D: Applied Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/1361-6463/ad4372","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
To achieve spectrum flattening in the wavelength division multiplexing (WDM) device's arrayed waveguide grating (AWG), we have cascaded a special "A" shape multimode interference (MMI) structure at the end of the input waveguide. The MMI is designed by the linear spreading function (LSF), which increases the 1 dB bandwidth to 0.7 nm and the 3 dB bandwidth to 1.6 0.2 nm, the insertion loss is measured at 3.5±0.3 dB, and the channel crosstalk is below -30 dB.
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