Photonic Power Systems Inc. has developed a system that uses a laser to inject power in the form of light into a fiber-optic cable and a photovoltaic (PV) array to convert the light back into electricity for powering devices. This method of transferring power has advantages in situations where sparks or shorts can be a fatal problem, where electromagnetic interference is more than just an inconvenience—in cellphone base stations, for example, or in pacemakers—and where conventional methods are bulky and cumbersome.
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