Optical encryption boosts networks.

“The image conceptually represents the compact, chip-scale platform integrating the 5×5 VCSEL array and custom beam-shaping optics to create a structured grid of uniform square spots. Credit: H. Safi (University of Cambridge)” (ScitechDaily, Forget Wi-Fi This Laser Tech Hits 360 Gbps at Half the Power)

Encryption protects information that travels on the net. But it also protects the system from unauthorised code. If the bit that travels to the system’s gate is wrong. The system denies access. To the system. This also makes it possible. To use the same data line with multiple devices. The same optical fibre or laser beam. It can transmit information to multiple devices. At the same time. The encryption process means that each participant. 

Of the receiving system cloud, like drone swarms, can take their individual orders. The idea is that the lidar system can use the broadcast address. Or the individual participant can pick. The “personal” orders by blocking others. Than the bits that are meant for that participant. The user can give orders to the entire cloud by using the broadcast address. And then. Click on one participant, which means the participant knows. 

That the next orders are for it. When the operator clicks the icon or the point. There, the drone, etc. is. The drone sends BizTalk information to the transmitter. The BizTalk includes the individual receiving address. And then the system can start the private communication. The optical communication means that drones can have small screens there are certain images. Those images can tell a certain. The individual drone that. The next commands are for it. 

The primary concern with WiFi in secure communication is that it can be eavesdropped upon. The laser-based communication is safer. But it doesn’t completely solve those problems. There is a possibility that using scattering effects, such as micro- or nanoparticles, may make the laser beam visible from the sides. When a nanoparticle goes into the laser beam. It can aim part of that radiation to the sides. 

This is one of the weaknesses in lasers. Another thing is that. The laser beam must have a straight line of sight to the receiver. The same thing. It can make it possible to use laser communication in a room. The laser beam can be directed to the glass box.  There are nano-particles in the box, and that makes the thing look like a light bulb. The receiver can see that thing from every side. And it can make this type of communication more secure than traditional WiFi. The data can travel between rooms through optical fibres. 

When we look at. The laser-based communication, the laser beam, or the laser beam pack, can form the mosaic. That mosaic can be used to form images. The image is the thing. That acts as one of the encryption keys. If that mosaic image. Which could be geometrical. Or it can portray some  character, it's right, the system reads the bit. If that image is not in its memory, the bit is denied. In those cases. 

The image is the key that opens the system’s gate to the message. The message is, of course, open for the system. Only if it travels through the gate. This means that the encryption also protects the system from malicious code. 

The encryption prevents the system from opening its gate for unauthorised code. 

There is a possibility that laser holograms can replace the radio-based WiFi in secure data communication. The hologram. It can have a certain shape. Like a statue. The receiver can use a regular camera to recognise binary communication. 

The system can use quantum or semi-quantum communication. The shape of the hologram statue. Tells. The receiving system receives information. That the system transmits on purpose.  The shape of the hologram acts as a key that activates the decoding system. If the image that the system sees is wrong. And. If it is not stored  in its memory, the system will not recognise that information. 

This means that there are many ways to secure information. The hologram, the colour of the hologram and its blinking sequence. The hologram itself can also be covered behind the blanket. Or it can be in the box. That allows the user and the computer to see it. That hologram can look like some art. And that makes the encryption hard to break. The hologram will not transmit information if there are no authorised users in the same space. 

https://scitechdaily.com/forget-wi-fi-this-laser-tech-hits-360-gbps-at-half-the-power/