An All-Optical NOR Logic Device using a Semiconductor Optical Amplifier and an External Modulation Technique

반도체 광증폭기와 외부변조 기법을 이용한 전광 NOR 논리소자

  • Byun, Young-Tae (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Kim, Sang-Hyuck (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Lee, Seok (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Kim, Jae-Hun (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Woo, Deok-Ha (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Kim, Sun-Ho (Photonics Research Center, Korea Institute of Science and Technology)
  • 변영태 (한국과학기술연구원 광기술연구센터) ;
  • 김상혁 (한국과학기술연구원 광기술연구센터) ;
  • 이석 (한국과학기술연구원 광기술연구센터) ;
  • 김재헌 (한국과학기술연구원 광기술연구센터) ;
  • 우덕하 (한국과학기술연구원 광기술연구센터) ;
  • 김선호 (한국과학기술연구원 광기술연구센터)
  • Published : 2000.04.22

Abstract

All-optical NOR logic device was realized by use of two pump signals with a single wavelength and a semiconductor optical amplifier(SOA). Specially, Mach-Zehnder(MZ) modulator was used for an external modulation of the pump signals. To obtain the sufficient gain saturation of the SOA, pump signals are amplified by an Er-doped fiber amplifier(EDFA) at the input of the SOA. Pump and probe signals are obtained from a DFB laser diode(${\lambda}_p$=1554 nm) and a tunable laser diode(${\lambda}_s$=1535 nm), respectively. The operation characteristics of the NOR logic device are successfully measured and demonstrated at the modulation frequency of 4.83 MHz.

Keywords