Invention Grant
US08989231B2 Surface emitting laser device, surface emitting laser array, optical scanning device, image forming apparatus, and manufacturing method of surface emitting laser device 有权
表面发射激光器件,表面发射激光器阵列,光学扫描器件,成像设备和表面发射激光器件的制造方法

  • Patent Title: Surface emitting laser device, surface emitting laser array, optical scanning device, image forming apparatus, and manufacturing method of surface emitting laser device
  • Patent Title (中): 表面发射激光器件,表面发射激光器阵列,光学扫描器件,成像设备和表面发射激光器件的制造方法
  • Application No.: US13915921
    Application Date: 2013-06-12
  • Publication No.: US08989231B2
    Publication Date: 2015-03-24
  • Inventor: Hiroyoshi ShoujiShunichi Sato
  • Applicant: Hiroyoshi ShoujiShunichi Sato
  • Priority: JP2010-098533 20100422; JP2010-233246 20101018; JP2011-026719 20110210
  • Main IPC: H01S5/00
  • IPC: H01S5/00 H01S5/183 B41J2/47 H01S5/32 H01S5/42
Surface emitting laser device, surface emitting laser array, optical scanning device, image forming apparatus, and manufacturing method of surface emitting laser device
Abstract:
A disclosed surface emitting laser device includes a light emitting section having a mesa structure where a lower reflection mirror, an oscillation structure, and an upper reflection mirror are laminated on a substrate, the oscillation structure including an active layer, the upper reflection mirror including a current confined structure where an oxide surrounds a current passage region, a first dielectric film that coats the entire surface of an emitting region of the light emitting section, the transparent dielectric including a part where the refractive index is relatively high and a part where the refractive index is relatively low, and a second dielectric film that coats a peripheral part on the upper surface of the mesa structure. Further, the dielectric film includes a lower dielectric film and an upper dielectric film, and the lower dielectric film is coated with the upper dielectric film.
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