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    • 9. 发明授权
    • Optical filter module and method of manufacturing the same
    • 光滤波器模块及其制造方法
    • US07630602B2
    • 2009-12-08
    • US11856498
    • 2007-09-17
    • Duk Jun KimJong Moo LeeJunghyung PyoGyungock Kim
    • Duk Jun KimJong Moo LeeJunghyung PyoGyungock Kim
    • G02B6/34G02B6/10
    • G02B6/12028G02B6/12011
    • An optical filter module for wavelength multiplexing and demultiplexing and a method 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 the input waveguides; array waveguide which is connected to the input-stage star coupler and in which a plurality of individual waveguides, each of which has an optical path having a predetermined length different to those of the other waveguides and has a heterogeneous waveguide interval formed of a material having a different refraction index from that of a core of the waveguides, are sequentially arranged; an output-stage star coupler in the form of a slab waveguide connected to the array waveguides; and at least 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 of conventional waveguides are introduced in predetermined areas of array waveguides, thereby reducing polarized light and temperature dependency and at the same time effectively removing optical coupling loss, which can occur at both ends of a heterogeneous waveguide interval, without an additional process of forming waveguides.
    • 提供了一种用于波分复用和解复用的滤光器模块及其制造方法。 用于波长复用和解复用的滤光器模块包括:至少一个或多个输入波导; 输入级星形耦合器,其形式为连接到输入波导的平板波导; 阵列波导,其连接到输入级星形耦合器,并且其中多个单独的波导具有与其它波导的预定长度不同的预定长度的光路,并且具有由具有 依次布置与波导的芯的折射率不同的折射率; 输出级星形耦合器,其形式为连接到阵列波导的平板波导; 以及连接到输出级星形耦合器的至少一个或多个输出波导。 根据光滤波器模块及其制造方法,在阵列波导的预定区域中引入具有与常规波导不同的芯材料的异质波导间隔,从而降低偏振光和温度依赖性,同时有效地去除光 耦合损耗,其可以发生在异质波导间隔的两端,而没有形成波导的附加工艺。