模拟光纤通信系统

仿照基带直接光强调制(DIM)是用承载信息的仿照基带信号，直接对发射机光源(LED或LD)进行光强调制，使光源输出光效率随时间改动的波形和输入仿照基带信号的波构成比例

(Imitation Baseband Direct Intensity Modulation (DIM) is to directly modulate the transmitter light source (LED or LD) with an imitation baseband signal carrying information, so that the light source output light efficiency changes with time and the input wave imitates the baseband signal. Composition ratio)

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