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An advanced free-space communication system has been developed by the researchers of IIT-G (Indian Institute of Technology, Guwahati) utilizing light beams to transmit error-free data. The primary advantage of the system is its ability to be insulated from hackers as the receiver while decoding the transmitted beam will be measuring the phase and not the power of the light beam.

In this system, data, in any form such as text, voice, image, or any other form is transmitted through the light beams whereas earlier, optical fibers were used. The system is a 1-to-1 line-of-sight communication and is free from distorting effects caused by atmospheric turbulence which will result in zero error at the receiving station.

The research has also been published in 'Communication Physics', as per the statement released by the Indian Institute of Technology, Guwahati. The free-space optical communication system has been developed by the research team led by Dr. Bosanta Ranjan Boruah, Physics Department of IIT-G and Dr. Santanu Konwar, Physics Department of Abhayapuri College in Assam.

Dr. Boruah, while explaining the research, said, "Through our tech, the transmission station modulates the phase profile of a laser beam that carries the data. In the process, we also enhance the information content per modulation cycle of the laser beam".

The researchers also demonstrated the ability of the system to transmit distortion-free texts and images over the 01 km distance in the presence of the storm.