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    • 7. 发明专利
    • Optical integrated element
    • 光学综合元件
    • JP2011066174A
    • 2011-03-31
    • JP2009215167
    • 2009-09-17
    • Nippon Telegr & Teleph Corp Tokyo Institute Of Technology国立大学法人東京工業大学日本電信電話株式会社
    • KAMIOKA HIROYUKIOHASHI HIROMISUGO MITSURUNISHIYAMA NOBUHIKOARAI SHIGEHISALEE SEUNG-HOON
    • H01S5/026H01S5/12
    • PROBLEM TO BE SOLVED: To provide an optical integrated element such as an integrated DFB laser in which a DFB laser element and an optical element are integrated, having a structure capable of reducing internal reflection generated between elements without using a new manufacturing step of an inclined waveguide or the like.
      SOLUTION: For example, the integrated DFB laser (optical integrated element) in which a DFB laser element 101 having a diffraction grating and an optical element 102 having a waveguide guiding layer 106 are integrated has a structure in which a refractive index shifting region 107 consisting of constituents 131, 132 each having an optical path length of a sub-wavelength or a wavelength equivalent to the sub-wavelength is installed between a diffraction grating 103 of the DFB laser element 101 and the waveguide guiding layer 106 of the optical element 102.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供集成DFB激光元件和光学元件的集成DFB激光器的光学集成元件,具有能够减少元件之间产生的内部反射的结构,而不使用新的制造步骤 的倾斜波导等。 解决方案:例如,其中具有衍射光栅的DFB激光元件101和具有波导引导层106的光学元件102集成的集成DFB激光器(光学集成元件)具有折射率偏移 在DFB激光元件101的衍射光栅103和光学器件的波导引导层106之间,安装由具有亚波长或与亚波长相当的波长的光路长度的构成要素131,132构成的区域107。 元素102.版权所有(C)2011,JPO&INPIT