Invention Application
US20110026555A1 SURFACE EMITTING LASER, SURFACE EMITTING LASER ARRAY, AND OPTICAL APPARATUS 审中-公开
表面发射激光,表面发射激光阵列和光学装置

  • Patent Title: SURFACE EMITTING LASER, SURFACE EMITTING LASER ARRAY, AND OPTICAL APPARATUS
  • Patent Title (中): 表面发射激光,表面发射激光阵列和光学装置
  • Application No.: US12837345
    Application Date: 2010-07-15
  • Publication No.: US20110026555A1
    Publication Date: 2011-02-03
  • Inventor: Tetsuya Takeuchi
  • Applicant: Tetsuya Takeuchi
  • Applicant Address: JP Tokyo
  • Assignee: CANON KABUSHIKI KAISHA
  • Current Assignee: CANON KABUSHIKI KAISHA
  • Current Assignee Address: JP Tokyo
  • Priority: JP2009-178992 20090731
  • Main IPC: H01S5/18
  • IPC: H01S5/18 H01S5/323
SURFACE EMITTING LASER, SURFACE EMITTING LASER ARRAY, AND OPTICAL APPARATUS
Abstract:
A surface emitting laser includes a pair of multilayer mirrors disposed opposing to each other, and an active layer disposed between the multilayer mirrors. In at least one multilayer mirror of the pair of multilayer mirrors, a plurality of first pair layers are stacked, each first pair layer is formed from a high-refractive index layer having a first strain and a low-refractive index layer having a second strain; and a second pair layer is included, the second pair layer is formed of one of the high-refractive index layer and the low-refractive index layer of the first pair layer in which one of the high-refractive index layer and the low-refractive index layer of the first pair layer is replaced with a layer formed from a quaternary or higher mixed crystal semiconductor material having a third strain.
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