http://www.w3.org/ns/prov#value | - Both types of optical switches can advantageously employ Micro-Electro-Mechanical Systems (MEMS) technology, with actuation provided by mechanical, electromagnetic, piezoelectric, photoactive ceramic or polymer, thermal, chemically-active polymer, electrostrictive, shape-memory alloy or ceramic, hydraulic and/or magneto-restrictive actuators and other types of actuators known in the art.
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