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유무선 통합시스템을 위한 마이크로파 회로 모델링 기반의 광전자 프리디스토션 광송신기의 설계 및 제작
이태경(Tae-Kyeong Lee),김홍승(Hong-Seung Kim),오금윤(Guem-Yoon Oh),김두근(Doo-Gun Kim),최영완(Young-Wan Choi) 대한전기학회 2011 전기학회논문지 Vol.60 No.4
We have systematically designed and experimentally demonstrated the opto-electrical predistortion optical transmitter using microwave circuit modelling for reducing the nonlinearity of the distributed-feedback laser diode (DFD-LD). The DFB-LD is analyzed using microwave circuits model based on rate equations. Through the system-level simulation for predistortion method, the optimized characteristics of the RF components in the system are confirmed. The simulated and experimental results show the reduced distortion products. These results are analyzed as the evaluation parameters for the miniaturization and optimization of the opto-electrical predistortion method in radio-over-fiber systems.