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    • 99. 发明申请
    • Bidirectional communication optical waveguide and manufacturing method thereof
    • 双向通信光波导及其制造方法
    • US20070025671A1
    • 2007-02-01
    • US11254093
    • 2005-10-20
    • Keishi ShimizuShigemi OhtsuKazutoshi YatsudaEiichi AkutsuAkira FujiiToshihiko Suzuki
    • Keishi ShimizuShigemi OhtsuKazutoshi YatsudaEiichi AkutsuAkira FujiiToshihiko Suzuki
    • G02B6/10
    • G02B6/125G02B6/4246
    • The present invention provides a bidirectional communication optical waveguide which can adopt a configuration in which light sources having the same wavelengths are used and stray light is not inputted to either a light emitting device or a light receiving device, and the bidirectional communication optical waveguide realizes a bidirectional communication module. The bidirectional communication optical waveguide includes a main waveguide core and a sub-waveguide core. A main inclined plane is provided in a midway of an optical path in the main waveguide core. The sub-waveguide core is provided with a sub-inclined plane in one end portion, and is close to or in contact with the main waveguide core such that the sub-inclined plane and the main inclined plane face each other. The main waveguide core has a structure in which an input light beam from an end portion for performing input and output of a bidirectional light signal from and to an optical fiber is deflected by total reflection at the main inclined plane and guided to the other end portion. The sub-waveguide core has a structure in which a refractive index of the sub-waveguide core is set not more than a refractive index of the main waveguide core and thereby total transmission of an output light beam from the end portion connected to a light emitting device is performed through the sub-inclined plane.
    • 本发明提供一种双向通信光波导,其可以采用其中使用具有相同波长的光源并且杂散光不被输入到发光器件或光接收器件的配置,并且双向通信光波导实现 双向通信模块。 双向通信光波导包括主波导芯和子波导芯。 在主波导芯中的光路的中途设置有主倾斜面。 副波导芯在一个端部设置有副倾斜平面,并且与主波导芯接近或接触,使得副倾斜面和主倾斜面彼此面对。 主波导芯具有这样的结构,其中来自用于进行来自光纤的双向光信号的输入和输出的端部的输入光束通过在主倾斜面处的全反射而被偏转并被引导到另一端部 。 子波导芯具有将副波导芯的折射率设定为不大于主波导芯的折射率的结构,从而将输出光束从连接到发光的端部的全部透射 装置通过副倾斜平面进行。