Optical arrangement for managing diversity and isolation between ports in wavelength selective switches

摘要

The optical device includes an optical port array, an optical arrangement, a dispersive element, a focusing element, and a programmable optical phase modulator. The optical port array has at least one optical input port and a plurality of optical output ports for receiving a light beam. The optical arrangement allows optical coupling between each of the input and output ports and prevents optical coupling between any one of the plurality of light output ports and any other of the plurality of light output ports. The dispersive element receives the light beam from the input port after traversing the optical arrangement and spatially divides the light beam into a plurality of wavelength components. The focusing element focuses a plurality of wavelength components. A programmable optical phase modulator receives a plurality of focused wavelength components and advances them to a selected one of the optical output ports.