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    • 1. 发明专利
    • OPTICAL MULTIPLEXER/DEMULTIPLEXER
    • CA2884318A1
    • 2014-03-20
    • CA2884318
    • 2013-09-13
    • NIPPON TELEGRAPH & TELEPHONE
    • OGUMA MANABUOGAWA IKUODOI YOSHIYUKIITOH MASAYUKITAKAHASHI HIROSHI
    • G02B6/12
    • Provided is a multiplexer/demultiplexer functioning as a very small AWG-type optical filter in order to create a small-sized, inexpensive transmission/reception module needed to realize a transceiver for high-speed Ethernet. In the present invention, an optical multiplexer/demultiplexer is provided with the following: at least one input waveguide having an input section at one end; a first slab waveguide, one end of which is connected to the other end of the input waveguide; an array waveguide group that has a plurality of waveguides and one end of which is connected to the other end of the first slab waveguide; a second slab waveguide, one end of which is connected to the other ends of the array waveguide group; and at least one output waveguide, one end of which is connected to the other end of the second slab waveguide and which has an output section at the other end. The optical multiplexer/demultiplexer is characterized in that each waveguide of the array waveguide group has a first curved section at which the direction of extension of the waveguide changes by 180° or more, and a second curved section at which the direction of extension of the waveguide changes by 180° or more in a direction opposite that of the first curved section.