Focal’s Diva Mezza Utopia is a $70,000 high-end wireless speaker system with Naim Class A/B amps, UWB streaming, and app control—no separates required, no cables necessary.

We review the capabilities of optical parametric amplifiers based on periodically poled LiNbO3 (PPLN) waveguides for optical communication. Specifically, we discuss phase and amplitude regeneration ...

A 1550 nm polarization insensitive semiconductor optical amplifier with a very thin tensile-strained bulk active layer was developed. The SOA module exhibited a record high fiber-coupled saturation ...