Variable optical attenuator with wavelength dependent loss compensation
    1.
    发明授权
    Variable optical attenuator with wavelength dependent loss compensation 有权
    具有波长相关损耗补偿的可变光衰减器

    公开(公告)号:US07295748B2

    公开(公告)日:2007-11-13

    申请号:US11462503

    申请日:2006-08-04

    IPC分类号: G02B6/00

    摘要: The invention relates to compensating for the wavelength dependent loss (WDL) in a variable optical attenuator (VOA) system by using a chromatic dispersion wedge, which is inserted between the mirror and the lens. Different wavelength components, e.g. shorter blue and longer red wavelengths, are redirected at different angles by the chromatic dispersion wedge and now arrive at the output fiber at different positions. Thus the smaller mode field diameter (MFD) or mode spot size of the blue light, overlaps more of the core of the output fiber by being closer thereto and now has less insertion loss (IL) as compared to a VOA without WDL compensator.

    摘要翻译: 本发明涉及通过使用插入镜和透镜之间的色散楔来补偿可变光衰减器(VOA)系统中的波长相关损耗(WDL)。 不同的波长分量,例如 较短的蓝色和较长的红色波长通过色散楔形件以不同的角度重定向,现在在不同位置到达输出光纤。 因此,与没有WDL补偿器的VOA相比,蓝光的较小的模场直径(MFD)或模式光斑尺寸通过更靠近输出光纤的核心而更多地与现在具有较小的插入损耗(IL)。

    Variable Optical Attenuator With Wavelength Dependent Loss Compensation
    2.
    发明申请
    Variable Optical Attenuator With Wavelength Dependent Loss Compensation 有权
    具有波长依赖损耗补偿的可变光衰减器

    公开(公告)号:US20070031104A1

    公开(公告)日:2007-02-08

    申请号:US11462503

    申请日:2006-08-04

    IPC分类号: G02B6/00

    摘要: The invention relates to compensating for the wavelength dependent loss (WDL) in a variable optical attenuator (VOA) system by using a chromatic dispersion wedge, which is inserted between the mirror and the lens. Different wavelength components, e.g. shorter blue and longer red wavelengths, are redirected at different angles by the chromatic dispersion wedge and now arrive at the output fiber at different positions. Thus the smaller mode field diameter (MFD) or mode spot size of the blue light, overlaps more of the core of the output fiber by being closer thereto and now has less insertion loss (IL) as compared to a VOA without WDL compensator.

    摘要翻译: 本发明涉及通过使用插入在镜子和透镜之间的色散楔来补偿可变光衰减器(VOA)系统中的波长相关损耗(WDL)。 不同的波长分量,例如 较短的蓝色和较长的红色波长通过色散楔形件以不同的角度重定向,现在在不同位置到达输出光纤。 因此,与没有WDL补偿器的VOA相比,蓝光的较小的模场直径(MFD)或模式光斑尺寸通过更靠近输出光纤的核心而更多地与现在具有较小的插入损耗(IL)。