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In this paper, we present the evolution of reconfigurable optical add drop multiplexer(ROADM) technologies, and compare three main ROADM architectures available on the market today. Three architectures include broadcast-select and demux-switch-mux[and the integrated version planar lightwave circuit(PLC)] and wavelengths-selective switch.
In this paper, we present the evolution of reconfigurable optical add drop multiplexer (ROADM) technologies, and compare three main ROADM architectures available on the market today. Three architectures include broadcast-select and demux- switch-mux [and the integrated version planar lightwave circuit (PLC)] and wavelengths-selective switch.