公开(公告)号：US06519080B2

公开(公告)日：2003-02-11

申请号：US09794033

申请日：2001-02-28

申请人： Paolo Vavassori ,  Paolo Gurnari ,  Giovanni Sacchi ,  Fabrizio Di Pasquale

发明人： Paolo Vavassori ,  Paolo Gurnari ,  Giovanni Sacchi ,  Fabrizio Di Pasquale

IPC分类号： H01S330

CPC分类号： H01S3/06758 ,  H01S3/06754 ,  H01S3/0677 ,  H01S3/094003 ,  H01S3/094011 ,  H01S3/1608 ,  H01S2303/00

摘要： An optical transmission system includes an optical transmitting unit (10) to transmit optical signals in a transmission wavelength band above 1570 nm; an optical receiving unit to receive the optical signals; an optical fiber link optically coupling the transmitting unit to the receiving unit, at least an optical amplifying unit (100) coupled along the link and adapted to amplify the optical signals; the optical amplifying unit (100) having an amplification wavelength band including the transmission wavelength band and comprising: an input (101) for the input of the optical signals, an output (102) for the output of the optical signals, at least an erbium-doped active fiber (103a, 103b) for the amplification of the optical signals, having a first end optically coupled to the input (101) and a second end optically coupled to the output (102), a pump source (104, 106) for generating a pump radiation having a wavelength greater than 1400 nm and lower than 1470 nm, and an optical coupler (105, 107) optically coupling the pump source (104) to the active fiber (103a, 103b).

摘要翻译： 光传输系统包括：光传输单元（10），用于传输1570nm以上的传输波段的光信号; 光接收单元，用于接收光信号; 至少一个光纤放大单元（100），其沿着所述链路耦合并适于放大所述光信号; 所述光放大单元（100）具有包括所述透射波长带的放大波长带，并且包括：用于输入所述光信号的输入（101），用于输出所述光信号的输出（102），至少铒 用于放大光信号的有源光纤（103a，103b），具有光耦合到输入端（101）的第一端和光耦合到输出端（102）的第二端，泵浦源（104,106） 用于产生波长大于1400nm且低于1470nm的泵浦辐射;以及将泵浦源（104）光学耦合到有源光纤（103a，103b）的光耦合器（105,107）。