公开(公告)号：US06229938B1

公开(公告)日：2001-05-08

申请号：US09494554

申请日：2000-01-31

申请人： Yoshinori Hibino ,  Akira Himeno ,  Makoto Abe ,  Takuya Tanaka ,  Shin Kamei ,  Akimasa Kaneko

发明人： Yoshinori Hibino ,  Akira Himeno ,  Makoto Abe ,  Takuya Tanaka ,  Shin Kamei ,  Akimasa Kaneko

IPC分类号： G02B626

CPC分类号： G02B6/12021 ,  G02B6/12016

摘要： The present invention provides a wavelength division multiplexing filter that requires lower costs, a smaller size, and a smaller amount of fiber routing operations. According to the present invention, a first module constitutes a first filter. A second module constituting a second filter is produced by connecting together circuits identical in number to a plurality of output ports of the first module, the circuits each comprising a combination of directional couplers and Bragg gratings both formed of silica-based-glass waveguides, the circuits each having a wavelength selection characteristic so as to correspond to each of the output ports. The second module is connected to the first module via an 8-fiber ribbon to simplify the integration and connection of the circuits.

摘要翻译： 本发明提供了一种波分复用滤波器，其需要较低的成本，较小的尺寸和较少量的光纤路由操作。 根据本发明，第一模块构成第一过滤器。 构成第二滤波器的第二模块通过将数量相同的电路连接在第一模块的多个输出端口来产生，每个电路包括由二氧化硅基玻璃波导形成的定向耦合器和布拉格光栅的组合， 每个具有波长选择特性的电路，以便对应于每个输出端口。 第二个模块通过8光纤带连接到第一个模块，以简化电路的集成和连接。