Nature

Frequency-modulated high-power photonic-crystal surface-emitting lasers for long-distance coherent free-space optical communications

In this Article we propose and experimentally demonstrate PCSELs that enable high-power FM with suppressed amplitude modulation (AM) under direct modulation, and we apply these PCSELs to coherent FSO ...
Nature

Characterization and cancellation of power-line-induced motional-mode frequency noise in a trapped-ion system

The stability of motional-mode frequency is essential for realizing high-fidelity quantum gates in trapped-ion quantum computing. While broadband Gaussian noise has been extensively studied and ...
EurekAlert!

Spin-dependent amplitude and phase modulation with multifold interferences via single-layer diatomic all-silicon metasurfaces

The design strategy for terahertz metasurfaces capable of achieving spin-selective functionality through complex-amplitude modulation is systematically categorized into four distinct parametric ...
EDN

Amplitude Modulation Receiver Circuit

The circuit was designed to be able to obtain signals via amplitude modulation where the sensitivity and selectivity is fairly good. Amplitude Modulation AM – a method of emphasizing data on an ...