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WIRELESS COMMUNICATION RECEIVER USING A TOTALLY INTERNALLY REFLECTING CONCENTRATOR
WIRELESS COMMUNICATION RECEIVER USING A TOTALLY INTERNALLY REFLECTING CONCENTRATOR
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机译:使用总内部反射式集中器的无线通信接收器
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摘要
An optical wireless communication receiver comprises a dielectric totally internally reflecting concentrator (DTIRC) (1) having a convexly curved receiving surface (2) for receiving incident radiation over a wide field-of-view and a concavely curved side surface (3) from which radiation passing through the receiving surface is totally internally reflected towards a detection surface (4). A narrowband optical filter (6) is provided for filtering the radiation before it reaches the detection surface (4), and a photodetector serves to detect the radiation reaching the detection surface (4) and to provide an electrical output signal indicative of the radiation detected. Such an arrangement offer higher concentration and allows the use of small photodetectors which reduces the capacitance and the cost and improves receiver sensitivity.
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