CAJ | 학술논문

硅基光子器件在光通信、光互连以及光计算领域均具有重要的作用。利用载流子色散效应，采用反向pn结构的硅基微环调制器，实现10 Gbit/s不归零码（Not Return to Zero, NRZ）信号的产生。同时，以此光调制器为核心器件，利用Optisystem和Matlab搭建10 Gbit/s NRZ传输系统并协同仿真分析在不同光纤传输长度和驱动信号下NRZ信号的系统性能。仿真结果表明：当加载幅度为5 V方波信号时，产生调幅信号的消光比为25.2 dB，最大传输距离为22.8 km，相应的系统功率损失为7.58 dB。
규기광자기건재광통신、광호련이급광계산영역균구유중요적작용。이용재류자색산효응，채용반향pn결구적규기미배조제기，실현10 Gbit/s불귀령마（Not Return to Zero, NRZ）신호적산생。동시，이차광조제기위핵심기건，이용Optisystem화Matlab탑건10 Gbit/s NRZ전수계통병협동방진분석재불동광섬전수장도화구동신호하NRZ신호적계통성능。방진결과표명：당가재폭도위5 V방파신호시，산생조폭신호적소광비위25.2 dB，최대전수거리위22.8 km，상응적계통공솔손실위7.58 dB。
Silicon photonic devices play an important role in optical communications, optical interconnects and optical computing. In this paper, we firstly generate NRZ signals based on silicon microring modulator using reverse-biased pn structure at a bit rate of 10 Gbit/s. Then, Optisystem and Matlab are employed to construct 10 Gbit/s NRZ transmission system. Finally, the performance of the established system is analyzed in terms of fiber transmission length and drive signal. Simulation results show that when the amplitude of square-wave signal is 5 volt, the extinction ratio of the modulated NRZ signal is 25.2 dB and the maximum transmission distance can be up to 22.8 km with the measured power penalty of 7.58 dB.