PHOTONIC GENERATION OF MILLIMETER-WAVE SIGNALS WITH TUNABLE PHASE SHIFT

A novel photonic approach to generating a frequency-quadrupled millimeter-wave (mm-wave) signal with a tunable echofix spring reverb phase shift is proposed and demonstrated.Two second-order optical sidebands are generated by using a Mach-Zehnder modulator (MZM) that is biased at the maximum transmission point and an optical notch filter.A polariza

The aim of this study was the investigation of the possibilities of direct determination of calcium, sodium and potassium in the commercial and kombucha-based fermented milk products by flame photometry.Two procedures were used for sample preparation: simple dilution with water (direct method) and extraction with mineral acid.Calcium, sodium and po