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- W4230054629 abstract "본 논문에서는 코히런트 시간 광 CDMA 시스템에서 발생되는 다중접근 간섭(MAI)을 제거하기 위한 전 광학적인 차동 검출 방법을 제안한다. 비선형 광학루프 거울(NOLM)은 두 제어 포트로 인가되는 광파워의 차를 출력으로 내 보내는 역할, 즉 전 광학적 차동 검출기로서 동작한다. 따라서, 같은 파형과 광 파워로 입력되는 MAI는 NOLM에서 차동 검출되어 제거된다. 실험을 위하여 두 개의 채널이 인코딩/디코딩 되었다. 디코딩된 신호는 NOLM의 두 제어 포트에 보내어지고, 출력단에서 MAI가 크게 제거된 반면, 높은 자기상관 피크를 가진 신호가 관측되었다. NOLM 통과 후, 신호-대-간섭 비는 7 ㏈만큼 개선되었다. We propose a novel scheme to suppress the multiple-access interference(MAI) in coherent optical CDMA systems. This is based on a differential detection using the dual-control NOLM. For an experimental demonstration, two encoded channels we constructed and decoded. These decoded signals are sent to the dual-control NOLM and a high autocorrelation peak with suppressed MAI at the output of the NOLM is observed. Signal-to-interference ratio is improved by 7 ㏈." @default.
- W4230054629 created "2022-05-11" @default.
- W4230054629 date "2004-06-01" @default.
- W4230054629 modified "2023-10-18" @default.
- W4230054629 title "Reduction of multiple-access interference in coherent optical CDMA systems based on all-optical differential detection" @default.
- W4230054629 doi "https://doi.org/10.3807/kjop.2004.15.3.229" @default.
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