But at each end of the fibre, optical signals must be converted to and from the electrical signals that computers use to process information.

但在纤维的各端，必须将光信号转换成电信号或者将电信号转换成光信号，计算机用电信号处理信息。

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For its part, IBM has used silicon to develop a fast and extremely thin photodetector to convert optical signals into electrical ones.

就其本身来说，IBM已经使用硅来研发一种超薄快速型光电探测器来讲光信号转换成电信号。

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Electronic data piped into one chip is converted into laser light that travels down an optical fiber and is transferred back into electrical signals a few fractions of a second later.

电子信号进入集成电路后被转换成激光，由光纤传出，在不到1秒的短时间后重新被转换成电子信号。

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