Sony China Official Micro News, Sony Computer Science Laboratory (Sony CSL) and Japan Aerospace Agency JAXA successfully demonstrated the use of optical communication technology in a multi-interference environment simulating the stratosphere.
This means that high-speed, high-bandwidth and low-energy point-to-point optical communication Internet services can be achieved in stratosphere or low-Earth orbit.
It is understood that the two sides simulated an experimental environment with a free space optical communication bit error rate built on a Gigabit Ethernet line. In this low-quality environment, ordinary Internet communication cannot be completed.
However, the experimental data was successfully transmitted at a speed of 446 Mbps*, which shows that optical communication in free space is also possible to achieve high-quality and high-speed communication similar to terrestrial Internet services.
The communication uses a signal processing method that combines Sony CSL's Forward Error Correction (FEC) and JAXA's Delay/Interrupt Tolerance Network (DTN), based on Sony's laser reading technology, which is evolving through optical technologies such as Blu-ray.
It is worth mentioning that this will be a new commercial development opportunity for future communication services, such as small optical communication terminals installed on satellite constellations in low Earth orbit, or drones for stratospheric communication.
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