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    • 2. 发明申请
    • RAMAN OPTICAL WAVEGUIDE
    • 拉曼光学波片
    • WO2004038470A1
    • 2004-05-06
    • PCT/GB2003/004548
    • 2003-10-23
    • QINETIQ LIMITEDLONI, Armando
    • LONI, Armando
    • G02B6/12
    • G02B6/1347G02B2006/12035G02B2006/12047H01S3/0632H01S3/0637H01S3/1086H01S3/30
    • A method for fabricating a waveguide (2), in a substrate (4) comprising a substantially single-crystalline Raman material, comprising the step of altering the refractive index of a first region (8) at a predetermined depth within the substrate so as to define a waveguide region (10) disposed between the first region (8) and a first surface of the substrate, such that electromagnetic radiation introduced into the waveguide region (10) is confined therein. The first region may occupy a single predetermined depth (for a planar waveguide), or may vary in depth across a selected portion of the substrate (4) for a stripe waveguide. The step of altering the refractive index of the first region (8) comprises implanting ions into said region to impart an amorphous structure thereto. The Raman material may comprise potassium gadolinium tungstate. A Raman waveguide (2) fabricated by the foregoing method.
    • 一种制造波导管(2)的方法,在包括基本上单结晶的拉曼材料的基片(4)中,包括将第一区域(8)的折射率改变为基片内预定深度的步骤,以便 限定设置在第一区域(8)和衬底的第一表面之间的波导区域(10),使得引入到波导区域(10)中的电磁辐射被限制在其中。 第一区域可以占据单个预定深度(对于平面波导),或者可以跨越用于条形波导的衬底(4)的选定部分的深度变化。 改变第一区域(8)的折射率的步骤包括将离子注入所述区域以赋予其非晶结构。 拉曼材料可以包括钨酸钾钆。 通过上述方法制造的拉曼波导(2)。