Multiplexing and demultiplexing optical signals
    4.
    发明申请
    Multiplexing and demultiplexing optical signals 审中-公开
    复用和解复用光信号

    公开(公告)号:US20050141806A1

    公开(公告)日:2005-06-30

    申请号:US10751309

    申请日:2003-12-31

    IPC分类号: G02B6/12 G02B6/34 G02B6/28

    摘要: A multiplexer and demultiplexer may be formed so that two input wavelengths from an optically multiplexed signal may be demultiplexed. A demultiplexer may be in the form of an integrated filter and photodetector. The filter may reflect one wavelength and may pass another wavelength. The reflected wavelength is detected by a first detector and the passed wavelength is detected by a second detector. For example, the second detector may be combined with the filter by forming the filter directly on the second detector. In one embodiment, the second detector may be L-shaped.

    摘要翻译: 可以形成多路复用器和解复用器,使得来自光复用信号的两个输入波长可以被解复用。 解复用器可以是集成滤波器和光电检测器的形式。 滤波器可以反射一个波长并且可以通过另一个波长。 反射波长由第一检测器检测,并且通过的波长由第二检测器检测。 例如,可以通过在第二检测器上直接形成滤波器来将第二检测器与滤波器组合。 在一个实施例中,第二检测器可以是L形的。

    Ultra-thin polarization mode converters based on liquid crystal materials
    9.
    发明申请
    Ultra-thin polarization mode converters based on liquid crystal materials 失效
    基于液晶材料的超薄偏振模式转换器

    公开(公告)号:US20060018585A1

    公开(公告)日:2006-01-26

    申请号:US11189543

    申请日:2005-07-26

    IPC分类号: G02B6/00

    摘要: A method and apparatus that includes a first waveguide segment that differentially changes the amplitude of the light relative to a first polarization orientation, a thickness of oriented liquid crystal or other birefringent material sufficient to delay one polarization component one-half wavelength relative to another, and a second waveguide segment that also differentially changes the amplitude of the light based on the polarization orientation. Also, an apparatus that includes a thin polarization converter that includes a thin first substrate that is substantially transparent to a wavelength of light, and a birefringent material deposited on one or more surfaces of the first substrate and oriented such that the polarization converter forms a half-wavelength birefringent plate for the light. Also, an apparatus having a first substrate surface, a second substrate surface, and a liquid crystal material between the first and second substrate surfaces to form a polarization converter.

    摘要翻译: 一种方法和装置,包括:第一波导段,其相对于第一偏振取向差异地改变光的幅度;取向液晶或其它双折射材料的厚度足以将一个偏振分量相对于另一个延迟一半波长;以及 还基于极化取向差分地改变光的振幅的第二波导段。 此外,一种包括薄偏振转换器的装置,其包括对于波长基本上是透明的薄的第一衬底,以及沉积在第一衬底的一个或多个表面上的双折射材料,并且使得偏振转换器形成一半 - 波长双折射板。 另外,在第一和第二基板表面之间具有第一基板表面,第二基板表面和液晶材料的装置,以形成偏振转换器。