In this paper, we propose three fiber optical CATV systems.Firstly, an externally modulated AM-VSB CATV system that uses external light injection technique is proposed and demonstrated.是什么意思_In this paper, we propose three fiber optical CATV systems.Firstly, an externally modulated AM-VSB CATV system that uses external light injection technique is proposed and demonstrated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句