Bandwidth variable transmitter (BVT) is one of the key enabling technologies for future EONs. In the University of Bristol's lab, transmitters are designed to generate optical signals with variable ...

Figure 1: MER calculation (example of QPSK *1) Quadrature Phase Shift Keying (QPSK): A technology (modulation scheme) conveys digital data by a carrier wave (radio wave)This uses four symbol ...