real-time key distillation and encrypted communication based on laser communication, and high-precision tracking based on satellite attitude control to maintain stable optical links. Building on ...

The trick is a software‑defined “integrated encryption and communication” (IEAC ... that adds no protection once a hacker taps the raw optical signal. True physical‑layer options exist ...

The record of the highest data rate ever achieved by a space-to-Earth optical communication link surpasses the 100 Gbps record set by the same team in June 2022. TBIRD makes passes over an ground ...

By proposing the use of fibres made of ultra-pure glass, they paved the way for the development of optical fibres that minimised signal loss. This made high-speed, long-distance communication a ...

A dynamic (shifting and rotating) optical image "OES" was encrypted into the coherent ... orbital angular momentum measurement, and optical communication etc. The research is published in the ...

We’re not talking WiFi here, but plain optical signals. Free-space optical communication, or FSO, is an interesting and easy way to transmit signals through light beams. Forget expensive lasers ...

according to the Office of Emergency Management and Communication. Chicago police districts are split into several radio zones, and the first to become encrypted was Zone 9, which covers the ...