Article comprising a hybrid multistage optical fiber amplifier
    2.
    发明公开
    Article comprising a hybrid multistage optical fiber amplifier 失效
    VielstufigenHybridfaserverstärkerenthaltender Artikel

    公开(公告)号:EP0803944A2

    公开(公告)日:1997-10-29

    申请号:EP97302411.0

    申请日:1997-04-08

    IPC分类号: H01S3/06

    摘要: Multistage Er-doped fiber amplifiers (EDFAs) (60) are disclosed. They comprise a first stage (63) that comprises Er and Al, and further comprise a second stage (67) that comprises Er and a further rare earth element, exemplary Yb. Such multistage EDFAs can have advantageous characteristics e.g., a relatively wide flat gain region (e.g. 1544-1562 nm), and relatively high output power, without significant degradation of the noise figure. Exemplary, the amplifiers are used in WDM systems and in analog CATV systems (110).

    摘要翻译: 公开了多级掺铒光纤放大器(EDFA)(60)。 它们包括包含Er和Al的第一级(63),并且还包括包含Er和另外的稀土元素(示例性Yb)的第二级(67)。 这样的多级EDFA可以具有有利的特性,例如相对宽的平坦增益区域(例如1544-1562nm)和相对较高的输出功率,而不会使噪声系数显着降低。 示例性地,放大器用于WDM系统和模拟CATV系统(110)。