Researchers at Stanford University have developed a new device to analyze partial coherence in light. Unlike perfectly coherent sources like lasers or incoherent sources like flashlights, most light sources, such as the sun or LED lights, exhibit partial coherence. This new device uses a network of interferometers on an integrated photonics platform to accurately measure and manipulate the coherence of light. It works by separating light into its mutually incoherent components, like those originating from different points on a light source, allowing for detailed analysis of the light's properties. This technology has potential applications in advanced imaging systems, environmental sensing, and developing more effective optical communications systems, promising improvements in both scientific research and practical technology.
