{"title":"Digital coherent optical receiver for satellite laser communication","authors":"Takashi Sasaki, M. Toyoshima, H. Takenaka","doi":"10.2514/6.2011-8065","DOIUrl":null,"url":null,"abstract":"Digital coherent methods are anticipated in next - generation optical communications. This paper discusses development of digital coherent optical transceivers for satellite laser communications. We attempt to apply digital filters, which have already shown results in ground optical fiber communications, to phase variations with atmospheric turbulence. For testing purposes, we developed phase modulators, 90-degrees hybrids for orthogonal polarization detection, an automatic optical frequency control circuit (AFC) and a digital signal processing (DSP) board based on field programmable gate array (FPGA). Communication performance is measured with QPSK at a transmission data rate of 12Gbps.","PeriodicalId":107082,"journal":{"name":"2011 International Conference on Space Optical Systems and Applications (ICSOS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 International Conference on Space Optical Systems and Applications (ICSOS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2514/6.2011-8065","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
Digital coherent methods are anticipated in next - generation optical communications. This paper discusses development of digital coherent optical transceivers for satellite laser communications. We attempt to apply digital filters, which have already shown results in ground optical fiber communications, to phase variations with atmospheric turbulence. For testing purposes, we developed phase modulators, 90-degrees hybrids for orthogonal polarization detection, an automatic optical frequency control circuit (AFC) and a digital signal processing (DSP) board based on field programmable gate array (FPGA). Communication performance is measured with QPSK at a transmission data rate of 12Gbps.