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Applications of optical switching in network elements and communication networks are discussed in considerable depth. Optical circuits, packet, and burst switching are all included.                                                                                                                       Composed of distinct self-contained chapters with minimum overlaps and independent references.                                                                                                                       Provides up-to-date comprehensive coverage of optical switching, technologies, devices, systems and networks.                                                                                                 Discusses applications of optical switching in network elements and communications networks.