Integrated optical multiplexer and demultiplexer for wavelength division transmission of information
    1.
    发明申请
    Integrated optical multiplexer and demultiplexer for wavelength division transmission of information 有权
    用于信号波分传输的集成光复用器和解复用器

    公开(公告)号:US20040184732A1

    公开(公告)日:2004-09-23

    申请号:US10767121

    申请日:2004-01-29

    Abstract: An integrated optical multiplexer and/or demultiplexer is provided for on-chip optical interconnection between electronic components on an integrated circuit chip and between chips, and for high density telecommunications. The multiplexer and/or demultiplexer includes an integrated circuit substrate formed with an array of photo detectors (for the demultiplexer) or photo emitters (for the multiplexer). Conditioning electronics is formed on the substrate and is coupled to the photo elements for conditioning electronic data for optical transmission in the case of the multiplexer or for conditioning optical signals into electronic data in the case of the demultiplexer. A first layer of optically transparent material is formed on the substrate overlying the detectors and/or emitters and a second layer of optically transparent material is formed on the first layer and functions as an optical waveguide. A binary blazed grating is formed at the interface of the first and second layers of optically transparent material. In use, discrete wavelength optical signals are modulated with data and emitted by the photo emitters. The discrete wavelengths are intercepted by the binary blazed grating overlying the emitters and multiplexed into a polychromatic beam for transmission through the waveguide. At the demultiplexer, the discrete wavelengths are separated by the binary blazed grating and directed to corresponding ones of the photo detectors. The conditioning electronics coupled to the photo detectors receives the output of the photo detectors, demodulates the output to extract the data, and formats the data for communication with electronic components on the integrated circuit.

    Abstract translation: 提供集成的光复用器和/或解复用器用于集成电路芯片上的电子部件之间以及芯片之间以及用于高密度电信的片上光互连。 多路复用器和/或解复用器包括由光检测器阵列(用于解复用器)或光发射器(用于多路复用器)形成的集成电路基板。 在多路复用器的情况下,在基板上形成调理电子装置,并耦合到照片元件,用于调节用于光学传输的电子数据,或者在解复用器的情况下将光学信号调节成电子数据。 第一层光学透明材料形成在覆盖检测器和/或发射体的基板上,第二层光学透明材料形成在第一层上并用作光波导。 在第一和第二层光学透明材料的界面处形成二元闪耀光栅。 在使用中,离散波长光信号由数据调制并由光发射器发射。 离散波长被覆盖在发射器上的二进制闪耀光栅所截获,并被多路复用成多色波束以便通过波导传输。 在解复用器处,离散的波长被二进制闪耀的光栅分开,并被引导到相应的光检测器。 耦合到光电检测器的调理电路接收光检测器的输出,解调输出以提取数据,并格式化用于与集成电路上的电子部件通信的数据。

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