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    Optical fibre communication system comprising means for optical pulse reshaping
    1.
    发明公开
    Optical fibre communication system comprising means for optical pulse reshaping 有权
    光纤通信系统包括用于光脉冲整形的装置

    公开(公告)号：EP1037416A2

    公开(公告)日：2000-09-20

    申请号：EP00301863.7

    申请日：2000-03-07

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Eggleton, Benjamin John ,  Lenz, Gadi ,  Slusher, Richard Elliott ,  Spalter, Stefan Heinz

    IPC分类号： H04B10/18

    CPC分类号： H04B10/25077 ,  H04B2210/258

    摘要： In an optical fiber communication system a pulse reshaper can transform a distorted input light pulse into a reshaped output light pulse. The disclosed pulse reshaper is an all-optical pulse reshaper that comprises an optical waveguide having an effective length, the waveguide connecting the input and the output and comprising optical non-linear material, with a periodic variation of an effective refractive index of the optical waveguide. The optically non-liner material and the periodic variation are selected such that the reshaped output light pulse is a substantially transform-limited output light pulse.

    摘要翻译： 在光纤通信系统中，脉冲整形器可以将失真的输入光脉冲转换成重新整形的输出光脉冲。 所公开的脉冲整形器是全光学脉冲整形器，其包括具有有效长度的光波导，波导连接输入和输出并且包括光学非线性材料，光波导的有效折射率的周期性变化 。 选择光学非线性材料和周期性变化，使得整形后的输出光脉冲是基本上变换限制的输出光脉冲。

    Laser incorporating tunable grating for group velocity dispersion compensation
    2.
    发明公开
    Laser incorporating tunable grating for group velocity dispersion compensation 审中-公开
    激光扫描仪激光打印机

    公开(公告)号：EP1022824A2

    公开(公告)日：2000-07-26

    申请号：EP00300220.1

    申请日：2000-01-13

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Collings, Brandon Christopher ,  Eggleton, Benjamin John ,  Greenberg Kosonski, Sandra ,  Lenz, Gadi ,  Spalter, Stefan Heinz

    IPC分类号： H01S3/098 ,  H01S3/067

    CPC分类号： H01S3/1112 ,  H01S3/0675 ,  H01S3/10076 ,  H01S3/1053 ,  H01S3/1055 ,  H01S3/108

    摘要： In accordance with the invention, a laser includes a tunable grating incorporated within the laser cavity. The grating is configured to provide GVD at wavelengths far from the photonic bandgap thus providing GVD compensation and management of intracavity dispersion. The grating is operated in the transmission mode and is configured so that reflection from within the photonic bandgap does not significantly affect the lasing condition. The grating is tunable, permitting adjustment of the intracavity GVD. In a preferred embodiment, the grating is an apodized fiber Bragg grating within the cavity of a modelocked fiber laser. The GVD of the fiber grating can be tuned by axial strain.

    摘要翻译： 根据本发明，激光器包括结合在激光腔内的可调光栅。 光栅被配置为在远离光子带隙的波长处提供GVD，从而提供GVD补偿和腔内分散的管理。 光栅在传输模式下工作，并且被配置为使得来自光子带隙内的反射不会显着影响激光条件。 光栅是可调谐的，允许调节腔内GVD。 在优选实施例中，光栅是在锁模光纤激光器的空腔内的变迹光纤布拉格光栅。 光纤光栅的GVD可以通过轴向应变来调节。