Wide bandwidth Raman amplifier employing a pump unit generating a plurality of wavelengths
    1.
    发明授权
    Wide bandwidth Raman amplifier employing a pump unit generating a plurality of wavelengths 失效
    宽带宽拉曼放大器采用产生多个波长的泵单元

    公开(公告)号:US06320884B1

    公开(公告)日:2001-11-20

    申请号:US09030994

    申请日:1998-02-26

    IPC分类号: H01S330

    CPC分类号: H01S3/302

    摘要: A Raman amplifier is provided that includes at least a portion of optical fiber in which an optical signal travels. The optical fiber portion may encompass all or part of the optical transmission path of an optical communication system. A pump energy unit is provided that includes first and second pump sources providing pump power at first and second wavelengths, respectively. The first and second wavelengths generate first and second gain profiles in the optical fiber portion. The first and second gain profiles overlap in wavelength. An optical coupler couples the pump power to the optical fiber portion. Since the gain profiles overlap, the Raman amplifier has a greater bandwidth than can be achieved with a pump operating at a single wavelength.

    摘要翻译: 提供了拉曼放大器,其包括光信号行进的光纤的至少一部分。 光纤部分可以包括光通信系统的全部或部分光传输路径。 提供了泵能量单元,其包括分别在第一和第二波长处提供泵浦功率的第一和第二泵浦源。 第一和第二波长在光纤部分中产生第一和第二增益分布。 第一和第二增益谱在波长上重叠。 光耦合器将泵浦功率耦合到光纤部分。 由于增益曲线重叠,拉曼放大器具有比在单个波长下工作的泵可实现的带宽更大的带宽。

    Wide bandwidth raman amplifier having a substantially flat gain profile
    2.
    发明授权
    Wide bandwidth raman amplifier having a substantially flat gain profile 有权
    宽带拉曼放大器具有基本平坦的增益曲线

    公开(公告)号:US06486466B1

    公开(公告)日:2002-11-26

    申请号:US09301436

    申请日:1999-04-28

    申请人: Howard Kidorf

    发明人: Howard Kidorf

    IPC分类号: G01B910

    CPC分类号: H01S3/302 H01S3/094096

    摘要: A Raman amplifier is provided that includes at least a portion of optical fiber in which an optical signal travels. The optical fiber portion may encompass all or part of the optical transmission path of an optical communication system. A pump energy unit is provided that includes at least three pump sources providing pump power at different pump wavelengths. The different pump wavelengths are spaced apart from one another by nonuniform amounts so that a prescribed Raman gain profile is generated in the optical fiber portion. An optical coupler is provided for coupling the pump power to the optical fiber portion and transmitting the optical signal therethrough.

    摘要翻译: 提供了拉曼放大器,其包括光信号行进的光纤的至少一部分。 光纤部分可以包括光通信系统的全部或部分光传输路径。 提供了一种泵能量单元,其包括至少三个在不同泵浦波长提供泵浦功率的泵浦源。 不同的泵浦波长彼此间隔不均匀,使得在光纤部分中产生规定的拉曼增益曲线。 提供一种光耦合器,用于将泵浦功率耦合到光纤部分并透过光信号。