专利名称：Mach-zehnder modulator发明人：Masaki Sugiyama,Yoshihiko
Yoshida,Yoshitada Kawashima,ToyokazuSasaki
申请号：US12987306申请日：20110110公开号：US08774563B2公开日：20140708
专利附图：
摘要：A mach-zehnder optical modulator includes a substrate having electroopticaleffect, wherein: the substrate has an inputting waveguide portion, two intermediate
waveguide portions, an outputting waveguide portion and a sub optical waveguideportion, the inputting waveguide portion being branched and coupled to the twointermediate waveguide portions, the two intermediate waveguide portions beingcombined and coupled to the outputting waveguide portion, the sub optical waveguidebeing provided on at least one side of the outputting optical waveguide portion andhaving a given distance from the outputting optical waveguide portion, the sub opticalwaveguide portion guiding an off-light emitted from a combining portion of the twointermediate waveguide portions; and a width of a starting point of the sub opticalwaveguide portion is larger than the outputting waveguide portion.
申请人：Masaki Sugiyama,Yoshihiko Yoshida,Yoshitada Kawashima,Toyokazu Sasaki
地址：Kawasaki JP,Kawasaki JP,Kawasaki JP,Kawasaki JP
国籍：JP,JP,JP,JP
代理机构：Staas & Halsey LLP
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