Phase-sensitive Amplification in Communications and Signal ProcessingZhi Tong, Stojan RadicPublished Jan 1, 2014• 0 citationsPublisherAbstractRecent progress in low-noise optical amplification and signal processing has raised prospects of practical devices operating below the conventional quantum limit. We review basic principles, practical implementation, and performance of such devices.DOI10.1364/cleo_si.2014.stu2j.4