A three-level modulation and control scheme for a class-D audio power amplifier is presented. The proposed scheme mainly consists of a three-level modulation circuit and a feedback compensation ...

This letter proposes a novel demodulation method for fiber-optic interferometer sensors. A fast square wave is added to the reference arm of the interferometer sensor in the form of phase modulation.

In this respect, for every single filamentation condition, we numerically simulated the transverse intensity distribution and the phase-azimuthal angle modulation of the produced THz vortex beam in ...