Side coupled pumping of double clad fiber gain media
    51.
    发明授权
    Side coupled pumping of double clad fiber gain media 有权
    双包层光纤增益介质的侧耦合泵浦

    公开(公告)号:US06434295B1

    公开(公告)日:2002-08-13

    申请号:US09483032

    申请日:2000-01-13

    IPC分类号: G02B626

    摘要: All-fiber coupling architectures include at least one fiber gain media, e.g. a fiber amplifier or a fiber laser, providing for the coupling light from one or more multi-wavelength pump sources propagating in a multimode core fiber at multiple points along a double clad fiber or at least at one point along multiple double clad fibers having their inner claddings fused to the multimode core fiber. The latter arrangement provides for a low cost utility multi-signal fiber amplifier for telecommunication applications.

    摘要翻译: 全光纤耦合结构包括至少一个光纤增益介质,例如, 光纤放大器或光纤激光器,提供来自一个或多个多波长泵浦源的耦合光,该多个光源在多重芯纤维中沿着双包层光纤在多个点处传播,或至少在一个点处沿着具有其内部的多个双包层光纤 融合到多模芯纤维的包层。 后一种布置为电信应用提供了一种低成本效用的多信号光纤放大器。

    Multiple wavelength optical sources
    52.
    发明授权
    Multiple wavelength optical sources 有权
    多波长光源

    公开(公告)号:US06407855B1

    公开(公告)日:2002-06-18

    申请号:US09430394

    申请日:1999-10-29

    IPC分类号: H01S330

    摘要: Optical pumping arrangements are provided for the broadband or multiple wavelength pumping of optical sources. Sources may be based on Raman gain media and may use multiple output couplers to couple out different wavelength ranges. Cascaded Raman resonator (CRR) configurations may also be used. Overlapping resonators at different wavelengths may be configured to share gain media, and may have separate portions in separate optical paths. Attenuation filters may also be used that are matched to the gain profile of a gain medium, to flatten the gain spectrum and allow equalization of gain to different output wavelengths. In one embodiment, polarization maintaining fiber is used to develop resonant conditions at different wavelengths in different polarization states. Wideband output gratings may be substituted for narrowband gratings to provide CRR configurations with a broader output band. Broadband amplification may also be provided by using a laser source operating in coherence collapse. The multiple wavelength pumping lends itself to a pumping arrangement in which sources at different wavelengths are combined into separate transmission/gain media such as the different fibers of an optical fiber cable.

    摘要翻译: 提供了用于光源的宽波长或多波长泵浦的光泵浦装置。 源可以基于拉曼增益介质,并且可以使用多个输出耦合器耦合出不同的波长范围。 也可以使用级联拉曼谐振器(CRR)。 可以将不同波长的重叠谐振器配置成共享增益介质,并且可以在单独的光路中具有分离的部分。 还可以使用与增益介质的增益曲线匹配的衰减滤波器,以平坦化增益谱,并允许将增益均衡到不同的输出波长。 在一个实施例中,使用偏振保持光纤来发展不同偏振态的不同波长的谐振条件。 宽带输出光栅可以代替窄带光栅,以提供具有更宽输出频带的CRR配置。 也可以通过使用在相干塌陷中操作的激光源来提供宽带放大。 多波长泵浦本身适用于泵送装置,其中将不同波长的源组合成单独的传输/增益介质,例如光纤电缆的不同光纤。