Laser Based Digital Communication System

Laser Based Digital Communication System


We are thinking of implementing this design as a High-Bandwidth & Long Distance Reliable Mode of
Analog-Digital Conversion using pulsating LASER Beams. The transmitter will include an Arduino & the receiver can be another microcontroller like Arduino, NodeMCU or Raspberry Pi. We can transmit sensor data / preset data / user custom data and maybe multimedia content over long distances at extremely-high power efficiency & ultra-low cost margins to generate a complete IOT Network without cabling or a dedicated Networking system like WIFI.




We initially thought of using an LDR in the Receiver section but the LDR is usually biased by the power supply & usually slow to react to changing intensity of light patters so we required a more reliable approach.

Solar panel was the best candidate, since it was extremely accurate & it generates voltage on its own when excited by charged photons. We just amplified that little current it generated just from a simple laser beam (we used a Focussed Torch since we have damaged our Laser Beam) using 2 High Gain and 2 Power Transistors to create a fast-accurate signal. With little calibration with capacitors, shunt resistances and signal diodes, we could isolate noise from the circuit as well.


















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