A gray-scale power supply line supplied to a source signal line driving circuit is made only one system, and each of DA conversion circuits drives source signal lines in which three source signal lines corresponding to RGB are made a unit and the number of which is a multiple of 3. 3%, adding a gum preparation to the milk, adding a starter to the milk to form a cheese milk, coagulating the cheese milk, cutting the coagulum to separate curd and whey, draining whey from the curd, and shaping and cooling the curd. Since the tracking error signal, which is overlapped by the MO signal of the MO detection unit, is synchronous with the tracking signal, a correction circuit is used to overlap the MO signal with the tracking error signal and to eliminate errors caused when the track shift signal overlaps the MO signal. 3 mol % K and where the nitrate and nitrite anions are present in amounts of about 36-50 mol % NO3, and about 50-62. These systems and methods advantageously provide at least one optical pump signal with the required energy spread across multiple polarizations with fewer optical pump lasers. A digital data stream is decoded and optionals down sampled to reduce the bit rate of the original stream.