Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Dispersion tolerant transmission of the return-to-zero signal with alternate-phase generated from a rational harmonic mode-locked ring laser

유리수차 조화 모드잠김 광섬유 링레이저로부터 발생된 교차 위상 RZ(return-to-zero) 신호의 분산 제어 전송

  • 조현정 (한국철도기술연구원 (KRRI)) ;
  • 황종규 (한국철도기술연구원 (KRRI)) ;
  • 김백현 (한국철도기술연구원 (KRRI)) ;
  • 백종현 (한국철도기술연구원 (KRRI))
  • Published : 2006.06.21
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Abstract

We present and demonstrate a novel method of alternate-phase return-to-zero (RZ) signal generation and pulse-amplitude equalization simultaneously in a rational harmonic mode-locked fiber ring laser, using a dual-drive Mach-Zehnder (MZ) modulator. By adjusting the voltages applied to both arms of the modulator, the rational harmonic mode-locked pulse trains are equalized in their amplitudes. In addition to that, the amplitude-equalized pulse trains multiplying the repetition rate at ${\sim}10\;GHz$ have alternate $\pi$ phase difference between adjacent pulses. The alternate-phase RZ signal generated by the proposed method enhances transmission performance through the single-mode fiber (SMF) links without dispersion compensation.

Keywords