Components for Generating Orbital Angular Momentum in Electromagnetic Waves Electromagnetic (EM) waves are used to provide modern telecommunications for transmitting and receiving data. Conventional modes of communication involve some form of modulation, such as amplitude, frequency and pulse-width modulation. Controlling the Orbital Angular Momentum (OAM) of EM waves is an advanced means of modulating EM waves and signals... Category(s): Technology Classifications > Electronics, Technology Classifications > Engineering, Campus > SUNY Oswego