Phase-sensitive optical parametric amplification (OPA) represents a pivotal advance in optical communications, exploiting the nonlinear interaction between a strong pump and a weak signal to achieve ...

Erbium-doped fibre amplifiers (EDFAs) represent a cornerstone in modern optical communications, offering high gain amplification across the C- and L-bands. These devices leverage the unique energy ...

A focus-stacked macro photograph of a fabricated gallium phosphide photonic chip featuring multiple spiral waveguides and other test structures. The chip width is just 0.55 cm across. Due to the high ...

Close up of an optical amplifier chip, similar to the one detailed in this study, that is being developed in the lab of Stanford physicist Amir Safavi-Naeini. A red laser light shines from an optical ...

Light does a lot of work in the modern world, enabling all types of information technology, from TVs to satellites to fiber-optic cables that carry the internet across oceans. Stanford physicists ...