A dispersion compensation device for compensating chromatic dispersion of optical pulses launched from the exterior is disclosed. The IPG includes charging and telemetry coils within the IPG case, which increases their mutual inductance and potential to interfere with each other; particularly problematic is interference to the telemetry coil caused by the charging coil. A transmitter, a receiver and a system thereof are also provided. A centrifugal pump is provided between the tank and the inlet of the separator. The method includes digesting a soy isoflavones concentrate with an acidic solution and separating insoluble solids from the acidic solution, wherein the solids are enriched in genistin and comprise glycosides of genistin and daidzin.