Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Jitter Reduction by Modulator-Bias Control in Analog Fiber-Optic Links Employing a Mach-Zehnder Modulator Followed by an Erbium-Doped Fiber Amplifier

마하-젠더 광 변조기와 EDFA로 구성된 아날로그 광통신 링크에서 변조기 바이어스 조정을 이용한 랜덤 지터의 감소

  • 이민영 (숭실대학교 정보통신전자공학부) ;
  • 윤영민 (숭실대학교 정보통신전자공학부) ;
  • 신종덕 (숭실대학교 정보통신전자공학부)
  • Received : 2009.12.08
  • Published : 2009.12.30
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Abstract

We report an efficient jitter reduction technique in an analog fier-optic link employing a Mach-Zehnder modulator followed by an erbium-doped fiber amplifier. By adjusting the modulator-bias to $0.089V_{\pi}$, we could increase the RF gain up to 10.65 dB for 10 GHz RF signal and reduce the random jitter by 46.5%, max, at an input optical power of -0.11 dBm to the EDFA.

본 논문에서는 마하-젠더 광 변조기와 EDFA(Erbium-Doped Fiber Amplifier)로 구성된 아날로그 광통신 링크에서 광 변조기에 인가되는 바이어스 전압의 조정을 통해 광통신 링크 출력의 랜덤 지터를 효과적으로 감소시키는 방법에 관하여 연구하였다. 광 변조기의 바이어스를 $0.5\;V_{\pi}$로부터 약 $0.089\;V_{\pi}$로 이동시켰을 때, 10 GHz RF 신호의 이득은 최대 10.65 dB가 증가하였고, 랜덤 지터는 EDFA의 입력 광 파워가 -0.11 dBm일 때 최대 46.5% 감소하였다.

Keywords

References

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