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Low Cost Free Space Optical Link using LEDs

Low Cost Free Space Optical Link using LEDs. Dr. Stephen E. Ralph. Hardware/Optics. FSO. Interface. Driver. Driver. Interface. LED. PD. USB. USB. Serial Data Transfer. Block Diagram. 500Mbps max bit rate. Tasks. Optimum LEDs/PDs

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Low Cost Free Space Optical Link using LEDs

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  1. Low Cost Free Space Optical Link using LEDs Dr. Stephen E. Ralph

  2. Hardware/Optics FSO Interface Driver Driver Interface LED PD USB USB Serial Data Transfer Block Diagram 500Mbps max bit rate

  3. Tasks • Optimum LEDs/PDs • Optimum drive circuit (chip set) instead of building one • PC board design • Board fabrication and population • Test

  4. LED Driver considerations • Power Efficiency • Sensitivity • Cost • Physical size

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