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    • 6. 发明授权
    • Light receiving module for SCM transmission
    • 用于SCM传输的光接收模块
    • US5490227A
    • 1996-02-06
    • US324885
    • 1994-10-18
    • Manabu TanabeKuniaki UtsumiHideaki TakechiHiroyuki SasaiYasushi MatsuiShigeru Yamane
    • Manabu TanabeKuniaki UtsumiHideaki TakechiHiroyuki SasaiYasushi MatsuiShigeru Yamane
    • G02B6/02G02B6/26G02B6/42
    • G02B6/421G02B6/02G02B6/262G02B6/4207
    • A light-receiving module includes: a pigtail optical fiber including a core portion for transmitting an optical signal and a cladding portion covering a side face of the core portion; an optical connector provided at a first end of the pigtail optical fiber for optically connecting a transmitting optical fiber with the end of the pigtail optical fiber; a light-receiving device having a light-receiving face for receiving the optical signal propagating through the core portion and for converting the optical signal into an electric signal; an optical coupling system for converging the optical signal emitted from a second end of the pigtail optical fiber onto the light-receiving face of the light-receiving device; and means for preventing light propagating through the cladding portion from reaching the light-receiving face of the light-receiving device so that the optical signal propagating through the core portion does not interfere with the light propagating through the cladding portion on the light-receiving face of the light-receiving device.
    • 光接收模块包括:辫状光纤,包括用于传输光信号的芯部分和覆盖芯部分的侧面的包层部分; 光纤连接器,其设置在所述尾纤光纤的第一端,用于将发射光纤与所述尾纤光纤的端部光学连接; 光接收装置,具有用于接收通过芯部传播的光信号并将光信号转换为电信号的光接收面; 光耦合系统,用于将从尾纤光纤的第二端发射的光信号会聚到光接收装置的光接收面上; 以及用于防止通过包层部分传播的光到达光接收装置的光接收面的装置,使得通过芯部传播的光信号不会干扰通过光接收面上的包层部分传播的光 的光接收装置。