Wavelength selective switch having multi-layer reflector
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United States of America Patent
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Dec 13, 2016
Grant Date -
Aug 11, 2016
app pub date -
Feb 10, 2015
filing date -
Feb 10, 2015
priority date (Note) -
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Abstract
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.
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