Abstract
분산 제어 (DM; dispersion management)와 광 위상 공액 (optical phase conjugation)이 적용된 광전송 링크에서 중계 구간 당 잉여 분산 (RDPS; residual dispersion per span) 기울기 (slope)에 따른 파장 분할 다중 전송 (WDM; wavelength division multiplexed) 채널의 보상 특성을 분석하여 최적의 RDPS 기울기를 도출하였다. RDPS 기울기가 증가할수록 WDM 채널의 유효 입사 전력 범위를 더욱 증가시키고 채널 간 성능 차이를 더욱 감소시키는 것을 확인하였다. 아울러 RDPS 기울기가 증가할수록 유효 전체 잉여 분산 (NRD; net residual dispersion) 범위도 증가하여 큰 RDPS 기울기가 유연한 광전송 링크 구성에 더욱 유리하다는 것을 확인하였다. The optimal residual dispersion per span (RDPS) slope is induced through the analyses of the compensation characteristics of the wavelength division multiplexed (WDM) channels depending on RDPS slope in the optical links with a dispersion management (DM) and an optical phase conjugation. The simulation results show that the effective launch power of WDM is more increased and the performance difference between the channels is more decreased as RDPS slope is more increased. The simulation results also show that the effective net residual dispersion (NRD) range is more increased as RDPS slope is more increased, and consequently, it is more advantageous to use the large RDPS slope for implementing the flexible optical links.
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