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简述光发射机的功能。
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通信概论(04742)
发表:2024年08月09日 20时08分19秒
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简述光发射机的功能。
【正确答案】:光发射机是实现电光转换的光端机,其功能是将来自于电端机的电信号对光源发出的光波进行调制,成为已调光波,然后再将已调的光信号耦合到光行或光缆中去传输。
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