Control pulse is coupled into this pulse shaper by wavelengthdivisionmultiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
The Dense WavelengthDivisionMultiplexer (DWDM) technology is used in many fields because of its many distinguishing performances, and becomes one of key technologies in fiber network.
密集波分复用(DWDM)技术具有许多独特的优点，得到了广泛的应用，成为光纤网络的关键技术之一。
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Optical add-drop multiplexer (OADM) is one of the key components for wavelengthdivision multiplexing (WDM) system.