OPTICAL FILTER MODULE AND METHOD OF MANUFACTURING

专利名称：OPTICAL FILTER MODULE AND METHOD OF

MANUFACTURING THE SAME

发明人：Duk Jun Kim,Jong Moo Lee,Junghyung

Pyo,Gyungock Kim

申请号：US11856498申请日：20070917

公开号：US20080131054A1公开日：20080605

专利附图：

摘要：An optical filter module for wavelength multiplexing and demultiplexing and amethod of manufacturing the same are provided. The optical filter module for

wavelength multiplexing and demultiplexing includes: at least one or more input

waveguides; an input-stage star coupler in the form of a slab waveguide connected to theinput waveguides; array waveguide which is connected to the input-stage star coupler andin which a plurality of individual waveguides, each of which has an optical path having apredetermined length different to those of the other waveguides and has a

heterogeneous waveguide interval formed of a material having a different refractionindex from that of a core of the waveguides, are sequentially arranged; an output-stagestar coupler in the form of a slab waveguide connected to the array waveguides; and atleast one or more output waveguides connected to the output-stage star coupler.According to the optical filter module and the method of manufacturing the same,heterogeneous waveguide intervals having core materials different from those ofconventional waveguides are introduced in predetermined areas of array waveguides,thereby reducing polarized light and temperature dependency and at the same timeeffectively removing optical coupling loss, which can occur at both ends of a

heterogeneous waveguide interval, without an additional process of forming waveguides.

申请人：Duk Jun Kim,Jong Moo Lee,Junghyung Pyo,Gyungock Kim

地址：Daejeon-city KR,Daejeon-city KR,Seoul KR,Seoul KR

国籍：KR,KR,KR,KR

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