From Information Theory to Space Laser Comms

The Necessity of a Multi-disciplinary Approach to Optical Wireless!

Due to the increasing scarcity of RF spectrum and growing interference due to multiple users, deploying next generation high-speed wireless networks is becoming increasingly difficult. The use of unlicensed optical bands for wireless communications has been heralded as an exciting development for future broadband access for indoor, over long distances terrestrially, underwater and for space communication links.

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Self Adaptive Programmable Optical Processor for FSO turbulence mitigation

In a Free Space Optics (FSO) link, there are several phenomena that can affect and degrade the performance of the channel. Among them, atmospheric turbulence plays a relevant role and today is the main obstacle in the implementation of high bitrates reliable FSO communication systems. The effect of turbulence on optical beams can be described as a random phase and amplitude modulation which results in a beam profile affected by scintillation.

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How to achieve 1 Tbps throughput over an 36000 km free-space optical link

For the next generation of very high throughput communication satellites, free-space optical (FSO) communication between ground stations and geostationary telecommunication satellites provide a potential solution to overcome the limitations of RF links. Moving from RF to optical wavelengths increases the carrier frequency, the bandwidth and thereby the throughput with approximately 3 orders of magnitude.

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