SEGMENTED THIN FILM ADD/DROP SWITCH AND MULTIPLEXER

摘要

An optical switch and WADM uses a channel selector (10) to provide channel selection and reconfigurable operation. The channel selector includes a segmented filter portion (100) and a highly reflecting mirror (110). The channel selectors can be cascaded to form an N-wavelength channel WDM system. The WADM allows for selection of a wavelength channel from a multitude of channels by moving the appropriate channel selector into the path of the light beam.