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    • 4. 发明授权
    • Transmission and reception module for a bidirectional optical
communication and signal transmission
    • 用于双向光通信和信号传输的发送和接收模块
    • US5552918A
    • 1996-09-03
    • US539832
    • 1995-10-06
    • Joachim KrugHans-Ludwig AlthausAlfred HartlGerhard Kuhn
    • Joachim KrugHans-Ludwig AlthausAlfred HartlGerhard Kuhn
    • G02B6/42H04B10/00
    • G02B6/4207G02B6/4246
    • A transmission and reception module for a bidirectional optical communication and signal transmission includes a light transmitter having a first lens coupling optical element, and a light receiver. A fiber connection has a second lens coupling optical element for a common optical waveguide. A beam splitter is disposed in a free beam path. A common housing surrounds the foregoing. The light transmitter, the beam splitter and the fiber connection as well as the light receiver which is orthogonal thereto, are disposed axially symmetrically. An optical axis of the first lens coupling optical element is axially offset from an optical axis of the light transmitter, an optical axis of the second lens coupling optical element is axially offset from the optical axis of the fiber connection, the end surface of the fiber connection, given optimal coupling-in of light, has an angle of inclination relative to its optical axis, and the beam splitter is inclined relative to an axis of symmetry of the configuration, such that backreflected radiation strikes neither a radiation-active part of the light transmitter nor a radiation-sensitive part of the light receiver.
    • 用于双向光通信和信号传输的发射和接收模块包括具有第一透镜耦合光学元件的光发射器和光接收器。 光纤连接具有用于公共光波导的第二透镜耦合光学元件。 分束器设置在自由光束路径中。 围绕上述的共同的住房。 光发射器,分束器和光纤连接以及与其正交的光接收器被轴向对称地设置。 第一透镜耦合光学元件的光轴从光发射器的光轴轴向偏移,第二透镜耦合光学元件的光轴从光纤连接的光轴轴向偏移,光纤的端面 给定光的最佳耦合的连接具有相对于其光轴的倾斜角,并且分束器相对于构造的对称轴倾斜,使得后向反射的辐射既不影响该光束的辐射活动部分 光发射机和光接收机的辐射敏感部分。