Wavelength selective switch having multi-layer reflector

摘要

A wavelength selective switch (WSS) apparatus is disclosed, which includes: a plurality of optical ports configured to output light beams at different angles from one another; a wavelength dispersion element configured to disperse the wavelength components of each light beam; a focusing element configured to focus the dispersed wavelength components of the light beams; and a multi-layer reflecting unit configured to reflect the focused light beams to the focusing element, the multi-layer reflecting unit including a multi-layer reflector and a reflection controller operatively connected to the multi-layer reflector, the multi-layer reflector having a main surface for reflecting the light beams on which a plurality of layers are provided, each layer including a plurality of pixels that are individually controllable by the reflection controller.

主权项

1. A wavelength selective switch (WSS) apparatus comprising:
a plurality of optical fiber ports configured to output light beams at different angles from one another; a wavelength dispersion element configured to disperse the wavelength components of each light beam; a focusing element configured to focus the dispersed wavelength components of the light beams; and a multi-layer reflecting unit configured to reflect the focused light beams to the focusing element, the multi-layer reflecting unit including a multi-layer reflector and a reflection controller operatively connected to the multi-layer reflector, the multi-layer reflector having a main surface for reflecting the light beams on which a plurality of layers are provided, each layer including a plurality of pixels that are individually controllable by the reflection controller, wherein the WSS apparatus is arranged that a predetermined wavelength component of a light beam output from one of the optical fiber ports is reflected by the multi-layer reflector to travel back to the one of the optical fiber ports.