Then, it describes the technological advances of optical fiber transmission and photonic devices and integration which are needed by the all-optical network.

接着说明全光同所根据的光纤传输系统和光子器件与集成技术的进展。

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All optical 3r regeneration is an effective method to overcome the optical signal degradation in the long haul transmission systems.

全光3r再生是克服超长距离传输中光信号恶化的一种有效的方法。

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In a photonic transmission system, the tunable optical fiber devices, such as all-optical tunable lasers, all-optical tunable optical add-drop multiplexers, etc. are very important parts.

在光子传输系统中，可调的光纤器件如全光可调谐激光器，全光可调光分插复用器等是非常重要一部分。

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