Optical waveguide and process for producing it

本发明提供了一种带有衍射光栅的具有足够高的反射率的光波导、用于获得该光波导的波导部件、和其制作方法。在一种光波导中，通过采用一种波导部件而在预定部分的芯和包层中形成了所希望的衍射光栅；在该波导部件中二氧化锗被加入芯和包层，并用紫外光的干涉条纹照射该波导部件的预定部分。由此，根据本发明的光波导在整个模式场区中都反射被引导光，因而具有高反射率。 This invention provides an optical waveguide having diffraction gratings with sufficiently high reflectivity, a waveguide member...

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Bibliographic Details
Main Authors MASUMI ITO, MAKI INAI, AKIRA INOUE
Format Patent
LanguageChinese
English
Published 28.04.2004
Edition7
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:本发明提供了一种带有衍射光栅的具有足够高的反射率的光波导、用于获得该光波导的波导部件、和其制作方法。在一种光波导中，通过采用一种波导部件而在预定部分的芯和包层中形成了所希望的衍射光栅；在该波导部件中二氧化锗被加入芯和包层，并用紫外光的干涉条纹照射该波导部件的预定部分。由此，根据本发明的光波导在整个模式场区中都反射被引导光，因而具有高反射率。 This invention provides an optical waveguide having diffraction gratings with sufficiently high reflectivity, a waveguide member for obtaining the optical waveguide, and a production process thereof. An optical waveguide in which desired diffraction gratings (43,44) are formed in a core (41) and in a cladding (42) at a predetermined portion by using a waveguide member in which germanium dioxide is added in the core and in the cladding and irradiating the predetermined portion of the waveguide member with interference fringes of ultraviolet light. By this, the optical waveguide according to the present invention reflects guided light throughout the entire mode field region, thus having a high reflectivity.
Bibliography:Application Number: CN19951002114