发明名称 |
OPTICAL AMPLIFIER AND OPTICAL TRANSMISSION SYSTEM |
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 fibre (103a, 103b).
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申请公布号 |
WO0164010(A2) |
申请公布日期 |
2001.09.07 |
申请号 |
WO2000IT00071 |
申请日期 |
2000.03.03 |
申请人 |
OPTICAL TECHNOLOGIES ITALIA S.P.A;VAVASSORI, PAOLO;GURNARI, PAOLO;SACCHI, GIOVANNI;DI PASQUALE, FABRIZIO |
发明人 |
VAVASSORI, PAOLO;GURNARI, PAOLO;SACCHI, GIOVANNI;DI PASQUALE, FABRIZIO |
分类号 |
H01S3/067;H01S3/094;H01S3/16;H04B10/17 |
主分类号 |
H01S3/067 |
代理机构 |
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