multi-level amplitude modulation schemes, which read and write data pages with three or more amplitude gradations, have the advantage of allowing existing optical systems to be used with the same ...

Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an analog telephone conversation, the voice waves on both sides are modulating the voltage of the ...

Spatial control of the phase and amplitude of a laser beam is useful for applications ranging from imaging and holography to interferometry and optical ... the type of modulation you need with ...