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专利名称：Optical circuit device and wavelength router发明人：Hideaki Okayama申请号：US09034288申请日：19980304公开号：US06229943B1公开日：20010508
专利附图：
摘要：A wavelength router has a structure capable of preventing a wavelength shiftfrom occurring and an optical circuit device capable of reducing a phase error. Thewavelength router includes three input ports; three input waveguides each having oneend connected to the corresponding input ports, respectively; a first plane waveguide to
which other ends of the input waveguides are connected; three output ports; threeoutput waveguides each having one end connected to the corresponding output ports,respectively; a second plane waveguide to which other ends of the output ports areconnected; and five interconnecting waveguides for connecting an output end face of thefirst plane waveguide and an input end face of the second plane waveguide. To makelengths of the interconnecting waveguides equal, optical path lengths from connectionportions (end face) into which light signals are input to coupling parts between the firstplane waveguide and the interconnecting waveguides, respectively, differ from oneanother.
申请人：OKI ELECTRIC INDUSTRY CO., LTD.
代理机构：Wenderoth, Lind & Ponack, L.L.P.
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