公开(公告)号：US06269203B1

公开(公告)日：2001-07-31

申请号：US09316323

申请日：1999-05-21

Applicant: Brian M. Davies ,  Ray T. Chen ,  Jian Liu

Inventor： Brian M. Davies ,  Ray T. Chen ,  Jian Liu

IPC: G02B628

CPC classification number: G02B6/29329 ,  G02B6/2938

Abstract: The present invention relates to the transmission of optical signals, and more particularly to wavelength division multiplexers and demultiplexers for optical signals. A wavelength division multiplexer device for use in an optical transmission system comprises a light input, one or more lenses, a substrate, one or more holographic optical elements, and two or more light outputs. The light input, the substrate, and the one or more lenses direct a light beam through the device. The one or more holographic optical elements act as transmission diffraction gratings and spatially separate the input light beam into dispersed light beams. Each light output receives one of the dispersed light beams. Multiple holographic optical elements may be stacked upon one another or separated by a substrate. Additionally, the substrate may comprise edges or parts that are beveled. Finally, the elements of the present invention may be rigidly coupled to each other, without intervening air space.

Abstract translation: 本发明涉及光信号的传输，更具体地涉及用于光信号的波分复用器和解复用器。 用于光传输系统的波分复用器装置包括光输入，一个或多个透镜，基板，一个或多个全息光学元件以及两个或更多个光输出。 光输入，基板和一个或多个透镜将光束引导通过该装置。 一个或多个全息光学元件用作透射衍射光栅，并将输入光束空间分离成分散的光束。 每个光输出都接收分散光束之一。 多个全息光学元件可以彼此堆叠或由衬底分开。 另外，基底可以包括倾斜的边缘或部分。 最后，本发明的元件可以彼此刚性地连接，而不会有中间的空气空间。