Are you still annoyed by the uneven distribution of Wi-Fi signal areas and weak signals? Li-Fi may be the answer. This technology uses LED-based indoor lighting instead of radio wave data transmission. But Li-Fi's main supporters have already surpassed LEDs, using Li-Fi based on laser illumination, and the data transfer rate has increased by a factor of 10.


Harald Haas, chair of Mobile Communications at the University of Edinburgh and members of the Ultra-Parallel Visible Light Communication Project, said: The problem is that LED lights, although they are more energy efficient than incandescent lamps, can still improve their light output efficiency. Harald Haas of the University of Edinburgh said. “We believe that the next wave of energy efficient lighting will be based on laser diodes.”

Li-Fi is encoded by adjusting the data of the LED light output. The human eye is not aware of the fast flicker, but the receiver or mobile device on the desktop computer can read the signal and even return the signal to the signal transceiver on the ceiling of the room to provide two-way communication. However, many LEDs use a phosphor coating to convert blue light into white light, which also limits the rate of data transmission.

The study, published in the Optics Express, showed that Haas and his team have shown that replacing existing LED lights with laser diodes can greatly improve the situation. The high energy and light efficiency of the laser can transfer data at a rate 10 times faster than the LED. Without the use of phosphors, laser illumination can mix light of different wavelengths to produce white light. This means that each wavelength of light can be used as a separate data channel, and the same light waves can be transmitted in both directions, greatly increasing the rate at which data is transmitted by light. The University of Edinburgh team experimented with nine laser diodes.

Although LED-based Li-Fi can achieve a data transfer rate of 10 Gb/s, the data transfer rate limit of Wi-fi7 Gb/s can be improved. The rate at which the laser transmits data can easily exceed 100 Gb/s.

Currently, such equipment is still very expensive, and the University of Edinburgh is seeking mass production to reduce its cost and can apply it to the lighting market. The headlights of the BMW i8 are based on this laser.

Laptop Intel Core I7

Best Budget I7 Laptop is everyone eager to. Laptop Intel Core i7 is the No. 1 processor clients choose when they are searching for a performance Gaming Laptop,cause it`s of excellent powering, bigger Solid State Drive, usually 512GB based, full HD 16:9 aspect ratio slimmer display bezels, bigger battery-12000mAh-no need to worry lack of power, fingerprint reader, backlight keyboard, etc. What is intel Core I7 Laptop Price? Usually 300-400usd. You can get Intel i7 11th Generation Laptop, Intel i7 10th Generation Laptop, Intel I5 11th Generation Laptop, Laptop I3 11th Generation,etc. 15.6 or 14 inch all available for i7 processor.

Cooperating with us, you just need to share all your requirements details, like size, cpu, ram, rom, battery, fingerprint, backlight, enter button numbers, SSD+HDD or only SSD ok, if need oem service, if need logo position, special apps preinstall if need, etc. Can provide matched and value feedback in 1-2 working days.

The reason why clients choose us is that just half of DOA than others, longer warranty time, smaller MOQ, fast delivery, competitive cost, good after-sale service, etc.

Laptop Intel Core I7,Intel Core I7 Laptop Price,Best Budget I7 Laptop,Intel I7 11th Generation Laptop,Intel I7 10th Generation Laptop

Henan Shuyi Electronics Co., Ltd. , https://www.shuyipc.com

Posted on