{"title":"Design of a wide upstream-bandwidth optical triplexer using three-waveguide interferometer","authors":"J. Choi, H. Lee, Seoyoung Lee","doi":"10.1109/NUSOD.2009.5297245","DOIUrl":null,"url":null,"abstract":"A novel planar lightwave circuit (PLC) triplexer is designed using a three-waveguide interferometer and Mach-Zehnder interferometers. We introduce a full-coupling scheme in the three-waveguide coupler for wide upstream-bandwidth characteristic. Transfer matrix forms for three-waveguide coupler and three-waveguide phase shifter are derived for numerical simulation. Simulation results show that the 1dB- and 3dB-bandwidth for the upstream channel are 115nm and 200nm, respectively. The proposed triplexer shows low insertion losses of less than 0.6dB and low crosstalks of less than −28dB for the two downstream bands, assuming that the waveguide width-error in the PLC fabrication is ±0.1µm.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"116 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NUSOD.2009.5297245","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
A novel planar lightwave circuit (PLC) triplexer is designed using a three-waveguide interferometer and Mach-Zehnder interferometers. We introduce a full-coupling scheme in the three-waveguide coupler for wide upstream-bandwidth characteristic. Transfer matrix forms for three-waveguide coupler and three-waveguide phase shifter are derived for numerical simulation. Simulation results show that the 1dB- and 3dB-bandwidth for the upstream channel are 115nm and 200nm, respectively. The proposed triplexer shows low insertion losses of less than 0.6dB and low crosstalks of less than −28dB for the two downstream bands, assuming that the waveguide width-error in the PLC fabrication is ±0.1µm.