Variable polarization-dependent-loss source
    5.
    发明授权
    Variable polarization-dependent-loss source 有权
    可变偏振相关损耗源

    公开(公告)号:US06975454B1

    公开(公告)日:2005-12-13

    申请号:US10209824

    申请日:2002-07-31

    IPC分类号: G02B6/27 G02B27/28

    摘要: An optical device including a beam splitter, polarization controller, and beam combiner is described. In some embodiments, the beam splitter and beam combiner are provided in a single element. An incoming light beam is split into two beams with different polarization components. The polarization of one or both of the beams is rotated using one or two polarization controllers such as fiber squeezers. The beams are then combined, so that a portion of each of the beams is provided to an output. The polarization dependent loss of the device can then be controlled by controlling the polarization rotation. In some embodiments, the rotation is dynamically controlled.

    摘要翻译: 描述了包括分束器,偏振控制器和光束组合器的光学装置。 在一些实施例中,分束器和光束组合器设置在单个元件中。 入射光束被分成具有不同偏振分量的两个光束。 使用一个或两个偏振控制器(诸如光纤挤压器)使一个或两个光束的偏振旋转。 然后将光束组合,使得每个光束的一部分被提供给输出。 然后可以通过控制偏振旋转来控制器件的偏振相关损耗。 在一些实施例中,动态地控制旋转。

    Waveplate analyzer based on multiple tunable optical polarization rotators
    8.
    发明授权
    Waveplate analyzer based on multiple tunable optical polarization rotators 有权
    基于多个可调光偏振旋转器的波片分析仪

    公开(公告)号:US07952711B1

    公开(公告)日:2011-05-31

    申请号:US12056262

    申请日:2008-03-26

    IPC分类号: G01J4/00

    CPC分类号: G01N21/23

    摘要: Systems, apparatus and methods for characterizing linear retarders using a waveplate analyzer constructed by polarization rotators. In one implementation of such an analyzer, both the retardation of the waveplate sample and the orientation of optical axis of the waveplate sample can be simultaneously measured.

    摘要翻译: 使用由偏振旋转器构成的波片分析仪来表征线性延迟器的系统,装置和方法。 在这种分析仪的一个实现中,可以同时测量波片样品的延迟和波片样品的光轴的取向。

    Optical differential group delay module with folded optical path
    10.
    发明授权
    Optical differential group delay module with folded optical path 有权
    具有折叠光路的光学差分组延迟模块

    公开(公告)号:US07723670B1

    公开(公告)日:2010-05-25

    申请号:US12055685

    申请日:2008-03-26

    IPC分类号: G02F1/01

    摘要: Differential group delay (DGD) devices and techniques based on folded optical paths. An in-line polarization monitor can be provided as a feedback for worst-case alignment without using an in-line polarizer. Polarization maintaining retro reflectors can minimize the introduced higher-order polarization effects caused by reflections between folding mirrors or prisms in conventional schemes.

    摘要翻译: 基于折叠光路的差分组延迟(DGD)器件和技术。 可以提供在线偏振监视器作为用于最坏情况对准的反馈而不使用在线偏振器。 偏振维持复古反射器可以将传统方案中折叠镜或棱镜之间的反射引起的高阶极化效应最小化。