简介:Non-uniformstep-sizedistributionisimplementedforsplit-stepbasednonlinearcompensationinsingle-channel112-Gb/s16quadratureamplitudemodulation(QAM)transmission.Numericalsimulationsofthesystemincludinga20×80kmuncompensatedlinkareperformedusinglogarithmicstepsizedistributiontocompensatesignaldistortions.50%ofreductioninnumberofstepswithrespecttousingconstantstepsizesisobserved.Theperformanceisfurtherimprovedbyoptimizingnonlinearcalculatingposition(NLCP)incaseofusingconstantstepsizeswhileNLCPoptimizationbecomesunnecessarywhenusinglogarithmicstepsizes,whichreducesthecomputationaleffortduetouniformlydistributednonlinearphaseforallsuccessivesteps.
简介:ByusingPDM-OFDM-16QAMmodulation,all-Ramanamplification,coherentdetection,and7%forwarderrorcorrection(FEC)threshold,wesuccessfullydemonstrate63-Tb/s(368×183.3-Gb/s)signalover160-kmstandardsinglemodefiber(SSMF)transmissionintheC-andL-bandswith25-GHzchannelspacing.368opticalchannelswithbandwidthspacingof25GHzaregeneratedfrom16externalcavitylasersources.After160-kmSSMFtransmission,alltestedbiterrorrate(BER)areunder3.8×10-3,whichcanberecoveredby7%FECthreshold.Withineachchannel,weachievethespectralefficiencyof6.85bit/s/HzinC/Lband.
简介:KTM的"ReadyToRace"精神KTM公司创建于1953年5月25日,总部位于奥地利的Mattighofen,在全球向来以开发制造性能卓越的越野及全功能摩托车著称,目前是欧洲第二大摩托车生产商。在越野摩托运动领域,KTM的霸主地位无人撼动,其公司车队及车手在全球所获得的赛事世界冠军已超过百个。值得一提的是,KTM的Adventuret款赛车在征战达喀尔拉力赛的历史上,创造了5连冠的史无前例的辉煌!这些伟大铸就了KTM的"ReadyToRace"的品牌精神,KTM似乎就是专为竞技、速度和冒险而生。卖车?或许这才是KTM的"主营副业"。从1992年开始,KTM摩托车的销量就以每年21%的平均速度增长(这是一个多么令众多汽车厂羡慕的数字!),这使得KTM"进入汽车产销领域已经成为一个合乎逻辑的选择"。KTM公司的CEOStefanPierer宣称X-Bow出现的意义在于"让那些没有摩托车驾驶执照的群体能够体验到KTM的动力艺术"。