MEMS wavelength selectable switch for adaptive wavelength filtering
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United States of America
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Feb 25, 2025
Grant Date -
May 12, 2022
app pub date -
Nov 11, 2020
filing date -
Nov 11, 2020
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Abstract
A MEMS-based Wavelength Selectable Switch (WSS), used classically for demultiplexing fiber optic communications, is re-purposed to act as a filter. A light emitter provides a light beam with its wavelength detected by a wavelength detector. A light condenser directs reflected light from the light emitter to an input of the WSS. The WSS is controllable to provide a selected wavelength band to a selected output of the WSS, where it is detected by a photodetector. Other wavelengths are discarded by the WSS at other outputs. A controller is configured to control the WSS to select the selected wavelength band based on a detected wavelength from the wavelength detector.
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