https://www.britannica.com/technology/materials-science/Optical-switching#ref406262

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Patents

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http://patentsforphotonics.com/

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https://sites.gatech.edu/ece-prg/patents/

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https://patents.google.com/patent/US20110135252A1/en

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https://www.photonics.com/Articles/US_Patent_2929922/a65759

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https://www.earthfiles.com/archive/

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https://www.auricmedia.net/silenced-people-dr-karla-turner-murdered/

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https://www.youtube.com/watch?v=IZbbV6k3J1E

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https://www.youtube.com/watch?v=MrOsOmBFq4c