비의류제품

horizontal tunneling and surface band bending' an external technique for wavelength tuning of surface-emitting diodes (leds)

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 474
a simple general spectral tuning technique is suggested and shown experimentally to be feasible. the technique, appropriate for shallow junction surface-emitting gaas leds, is repeatable, controllable, reversible, and appears to be completely non-destructive. the tuning capability makes it possible to increase system bandwidth in optical fiber communication by operating at wavelengths at which there is less fiber material dispersion. this technique also increases greatly the number of source wavelengths that can be used in wavelength multiplexing schemes. the basis for this technique is changes in semiconductor surface charge produced by changes in gaseous environment. in particular, external gas pressure reduction leads to desorption of surface impurities
이전글 다음글 목록