A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient is proposed in this paper. The fiber characteristics based on the full-vector finite element method(FEM) with perfect matc...A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient is proposed in this paper. The fiber characteristics based on the full-vector finite element method(FEM) with perfect matched layer boundary conditions show that four supermodes with large effective area, low nonlinear coefficient and low differential mode group delay(DMGD) are achieved. With the increase of input wavelength, the effective areas of three-ring-core few-mode fiber are increased, and the nonlinear coefficients are decreased. The bending losses are increased with the increase of input wavelength, and are decreased with the increase of bending radius. Moreover, the proposed fiber performs a nonlinear coefficient and DMGD flattened profile at a large wavelength range.展开更多
Multiple sclerosis（MS）is a chronic autoimmune disease of the central nervous system（CNS）characterized by coexisting processes of inflammation,demyelination,axonal neurodegeneration,and gliosis.It is the most commo...Multiple sclerosis（MS）is a chronic autoimmune disease of the central nervous system（CNS）characterized by coexisting processes of inflammation,demyelination,axonal neurodegeneration,and gliosis.It is the most common disabling neurological disease in young adulthood.展开更多
The diversified development of British novels in the Renaissance mainly displays in several aspects,that is,lateral reflection of the social development background,specific expression of forming complex psychology of ...The diversified development of British novels in the Renaissance mainly displays in several aspects,that is,lateral reflection of the social development background,specific expression of forming complex psychology of developing social mission,and macro manifestation of the basic needs of the public.This is the important factor of contemporary cultural school to find the innovative development road,and also the crucial effect to explore and excavate the development characteristics of contemporary cultural school,expressing the time promoting effect of the development of the diversified development of British novels in the Renaissance.Seen from the development characteristics of the C ultural School,the development direction between the social characteristics of times and the basic demand of social groups on social culture agrees with the diversified development of British novels in the Renaissance,and fully demonstrates the effect and value of the latter on the overall development of social cultural school.展开更多
基金supported by the National Natural Science Foundation of China(Nos.61671227 and 61431009)the Shandong Provincial Natural Science Foundation(No.ZR2011FM015)the Taishan Scholar Research Fund of Shandong Province
文摘A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient is proposed in this paper. The fiber characteristics based on the full-vector finite element method(FEM) with perfect matched layer boundary conditions show that four supermodes with large effective area, low nonlinear coefficient and low differential mode group delay(DMGD) are achieved. With the increase of input wavelength, the effective areas of three-ring-core few-mode fiber are increased, and the nonlinear coefficients are decreased. The bending losses are increased with the increase of input wavelength, and are decreased with the increase of bending radius. Moreover, the proposed fiber performs a nonlinear coefficient and DMGD flattened profile at a large wavelength range.
基金Dr.Mao-Draayer has served as a consultant and/or received grant support from:Acorda,Bayer Pharmaceutical,Biogen Idec,EMD Serono,Genzyme,Novartis,Questor,Teva Neuroscience and Chugai PharmaDr.Mao-Draayeris currently supported by grants from NIH NIAID Autoimmune Center of Excellence:UM1-AI110557+1 种基金NIH NINDS R01-NS080821the University of Michigan Neurology Department
文摘Multiple sclerosis（MS）is a chronic autoimmune disease of the central nervous system（CNS）characterized by coexisting processes of inflammation,demyelination,axonal neurodegeneration,and gliosis.It is the most common disabling neurological disease in young adulthood.
文摘The diversified development of British novels in the Renaissance mainly displays in several aspects,that is,lateral reflection of the social development background,specific expression of forming complex psychology of developing social mission,and macro manifestation of the basic needs of the public.This is the important factor of contemporary cultural school to find the innovative development road,and also the crucial effect to explore and excavate the development characteristics of contemporary cultural school,expressing the time promoting effect of the development of the diversified development of British novels in the Renaissance.Seen from the development characteristics of the C ultural School,the development direction between the social characteristics of times and the basic demand of social groups on social culture agrees with the diversified development of British novels in the Renaissance,and fully demonstrates the effect and value of the latter on the overall development of social cultural school.
