Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Fabrication of low Noise Erbium-Doped Fiber Amplifier and Optical Preamplification Experiment

저 잡음 에르븀 첨가 광섬유 증폭기의 제작 및 광전차 증폭 실험

  • 이상수 (한국전자통신연구소 광통신연구실) ;
  • 한정희 (한국전자통신연구소 광통신연구실) ;
  • 윤태열 (한국전자통신연구소 광통신연구실) ;
  • 이창희 (한국전자통신연구소 광통신연구실) ;
  • 심창섭 (한국전자통신연구소 광통신연구실)
  • Published : 1994.06.01
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Abstract

A low noise erbium doped fiber amplifier for optical preamplification has been demonstrated. The amplifier incoporates an optical isolator in its midway to prevent decrease of population inversion at the input port due to backward traveling amplified spontaneous emission. Then, high gain and low noise can be achieved simultaneously. A small signal gain of 34dB and a noise figure of 5.5dB have been achieved. With this amplifier, we obtained a receiver sensitivity of -39.7dBm with back to back configuration and -39.3dBm with 47km normal fiber for 10$^{-9}$BER at 2.5Gbps direct modulated optical signal.

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