US Patent 9103991 Multi-pole optical signal switch
Patent 9103991 was granted and assigned to Finisar on August, 2015 by the United States Patent and Trademark Office.
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An optical switch having multiple input and output ports directs any number of WDM signals, each arriving at a respective input port, to any one of the output ports. The optical switch includes an array of LC pixels, each positioned to receive a WDM signal transmitted through one of the ports, and an array of reflective elements, each associated with one of the LC pixels. The LC pixels are controlled to cause a WDM signal incident thereon to attain an attenuation state while an output of the WDM signal is being switched by an associated reflective element, such that when an output for a WDM signal is switched from a first port to a second port, the switching can be performed in a hitless manner.
US Patent 09103991 Multi-pole optical signal switch US Patent 9103991 Multi-pole optical signal switch
US Patent 09103991 Multi-pole optical signal switch
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