Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer
    1.
    发明授权
    Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer 有权
    光增益均衡器,以及包括光增益均衡器的光放大器和波分复用发射机

    公开(公告)号:US06377390B1

    公开(公告)日:2002-04-23

    申请号:US09486562

    申请日:2000-03-03

    IPC分类号: H01S300

    摘要: In an optical gain equalizer according to the present invention, a plurality of etalon filters 1 and one ore more fiber gratings 2 or dielectric multilayer filters 3 are arranged in line, and a beam of light externally applied is passed through the etalon filters 1 and the fiber gratings 2 or dielectric multilayer filters 3 and outputted to the outside, and the etalon filters 1 have sinusoidal wave loss characteristic of the same amplitude and period as those of the term obtained by Fourier series expansion of the loss wavelength characteristic for gain flattening, and the one or more fiber gratings 2 or dielectric multilayer filters 3 compensate the ripple component remaining as the difference between the loss wavelength characteristic for gain flattening and the loss wavelength characteristic owing to the etalon filters 1. An optical amplifying device 14 is constituted by combining an optical amplifier 5 with the optical gain equalizer 4. A wavelength-division multiplex transmitter is constituted by using the optical amplifying device 14.

    摘要翻译: 在根据本发明的光学增益均衡器中,多个标准具滤光器1和一个以上的光纤光栅2或电介质多层滤光器3排列成一列,外部施加的光束通过标准具过滤器1和 光纤光栅2或电介质多层滤波器3并输出到外部,并且标准具滤波器1具有与通过用于增益平坦化的损耗波长特性的傅立叶级数扩展获得的项相同的振幅和周期的正弦波损耗特性, 一个或多个光纤光栅2或电介质多层滤波器3补偿作为增益平坦化的损耗波长特性与由标准具滤波器1引起的损耗波长特性之间的差异剩余的纹波分量。光放大装置14是将 具有光学增益均衡器的光放大器5 通过使用光放大装置14构成。