The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Enhancement of IPDR of SOA-MZI Wavelength Converter with Pre-amplifier Using a CW-HB

CW-HB를 이용하는 전치증폭기를 가진 SOA-MZI 파장변환기에서 IPDR 개선

  • 김주엽 (연세대학교 전기전자공학과 광대역 전송 네트워크 연구실) ;
  • 한상국 (연세대학교 전기전자공학과 광대역 전송 네트워크 연구실)
  • Published : 2006.01.01
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Abstract

A pre-amplified semiconductor optical amplifier-Mach-Zehnder interferometer(SOA-MZI) wavelength converter (WC) using a continuous wave-holding beam(CW-HB) is proposed and experimentally demonstrated at 10Gb/s. The proposed scheme achieves not only enhancement of input power dynamic range(IPDR) to over 20dB but also higher Q parameter of about 2 to 3 by no output signal distortion and higher extinction ratio(ER) of about 2dB to 5dB by low noise figure (NF), compared with the bias current control method.

CW-HB(continuous wave-holding beam)를 이용하여 전치 증폭되는 SOA-MZI(semiconductor optical amplifier-Mach-Zehnder interferometer) 파장변환기가 제안되고 10Gb/s에서 실험적으로 검증되었다. 바이어스 전류만으로 전치증폭기를 제어하던 기존의 방법과 비교할 때, 제안된 CW-HB 제어 방법은 IPDR(input power dynamic range)의 개선 측면에서는 20dB 정도로 유사하나 출력신호의 왜곡을 제거하여 Q 파라미터를 $2{\sim}3$ 정도 향상시키고 낮은 NF(noise figure)를 달성하여 $2{\sim}5dB$ 정도 더 높은 소광 비를 얻을 수 있어서 매우 우수하다.

Keywords

References

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