Optical fiber 事节EDFA泵浦高能级的选取 AE3的选取原则 1泵浦效率; 2有相应效率激光器作泵浦源980m和1480nm BEAS: Excited State Absorption, Energy upconversion EAS:指处于激发态的粒子吸收泵浦光(or信号光)向更高的能级跃 迁 C 980nm Vs 1480nm 980nm advantages: high gain, high pump efficiency. lower noise( 3db)1-1 Copyright Wang Yan 2021/2/19 Optical fiber communications 第五节 EDFA泵浦高能级E3的选取 A.E3的选取原则 1.泵浦效率； 2.有相应效率激光器作泵浦源980nm和1480nm B.EAS：Excited State Absorption,Energy upconversion EAS:指处于激发态的粒子吸收泵浦光（or信号光）向更高的能级跃 迁。 C.980nm VS 1480nm 980nm advantages：high gain、high pump efficiency、 lower noise（3db）