Wavelength Selective Switch (WSS)

A Wavelength Selective Switch (WSS) is a device used in optical fiber networks that allows operators to dynamically control and direct specific wavelengths—or colors—of light within a fiber. Think of it as a traffic controller for internet data that can quickly reroute particular channels without affecting the others. This flexibility enables efficient management of network bandwidth, enhances capacity, and optimizes performance by selectively switching optical signals from one path to another, all while preserving the integrity of the data carried by each wavelength.