New signal-processing algorithms have been shown to mitigate the impact of turbulence in free-space optical experiments, potentially bringing “free space” internet a step closer to reality.
The team of researchers, from Aston University’s Aston Institute of Photonic Technologies and Glasgow University, used commercially available photonic lanterns, a commercial transponder, and a spatial light modulator to emulate turbulence. By applying a successive interference cancelation digital signal processing algorithm, they achieved record results.
The findings are published in the Journal of Lightwave Technology.
How programmers turned the internet into a paintbrush. DALL-E 2, Midjourney, Imagen, explained.
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Beginning in January 2021, advances in AI research have produced a plethora of deep-learning models capable of generating original images from simple text prompts, effectively extending the human imagination. Researchers at OpenAI, Google, Facebook, and others have developed text-to-image tools that they have not yet released to the public, and similar models have proliferated online in the open-source arena and at smaller companies like Midjourney.
These tools represent a massive cultural shift because they remove the requirement for technical labor from the process of image-making. Instead, they select for creative ideation, skillful use of language, and curatorial taste. The ultimate consequences are difficult to predict, but — like the invention of the camera, and the digital camera thereafter — these algorithms herald a new, democratized form of expression that will commence another explosion in the volume of imagery produced by humans. But, like other automated systems trained on historical data and internet images, they also come with risks that have not been resolved.
TAMPA, Fla. — Microsoft said Dec. 14 it is partnering with satellite operator Viasat to find solutions for bringing internet access to 10 million unserved or underserved people within three years.
Viasat is the first satellite operator to join Microsoft’s Airband initiative, which aims to deliver connectivity to a quarter of a billion people by the end of 2025 through a mix of technologies.
Microsoft set up Airband in 2017 and said the initiative had enabled high-speed internet access for more than 51 million people globally — about 20% of its goal.
Ammaar Reshi was playing around with ChatGPT, an AI-powered chatbot from OpenAI when he started thinking about the ways artificial intelligence could be used to make a simple children’s book to give to his friends. Just a couple of days later, he published a 12-page picture book, printed it, and started selling it on Amazon without ever picking up a pen and paper.
The feat, which Reshi publicized in a viral Twitter thread, is a testament to the incredible advances in AI-powered tools like ChatGPT—which took the internet by storm two weeks ago with its uncanny ability to mimic human thought and writing. But the book, Alice and Sparkle, also renewed a fierce debate about the ethics of AI-generated art. Many argued that the technology preys on artists and other creatives—using their hard work as source material, while raising the specter of replacing them.
Researchers have developed a new all-optical method for driving multiple highly dense nanolaser arrays. The approach could enable chip-based optical communication links that process and move data faster than today’s electronic-based devices.
“The development of optical interconnects equipped with high-density nanolasers would improve information processing in the data centers that move information across the internet,” said research team leader Myung-Ki Kim from Korea University.
“This could allow streaming of ultra-high-definition movies, enable larger-scale interactive online encounters and games, accelerate the expansion of the Internet of Things and provide the fast connectivity needed for big data analytics.”
The speed record for data transmission using a single light source and optical chip has been shattered once again. Engineers have transmitted data at a blistering rate of 1.84 petabits per second (Pbit/s), almost twice the global internet traffic per second.
It’s hard to overstate just how fast 1.84 Pbit/s really is. Your home internet is probably getting a few hundred megabits per second, or if you’re really lucky, you might be on a 1-gigabit or even 10-gigabit connection – but 1 petabit is a million gigabits. It’s more than 20 times faster than ESnet6, the upcoming upgrade to the scientific network used by the likes of NASA.
Even more impressive is the fact this new speed record was set using a single light source and a single optical chip. An infrared laser is beamed into a chip called a frequency comb that splits the light into hundreds of different frequencies, or colors. Data can then be encoded into the light by modulating the amplitude, phase and polarization of each of these frequencies, before recombining them into one beam and transmitting it through optical fiber.
Al Rihla in Arabic means “a journey,” and perhaps this was one of the epic journeys of the technologically loaded football.
The FIFA World Cup official match ball, Al Rihla, has been launched into space and back in a football frenzy to garner attraction to the ongoing World Cup in Qatar.
From space to the football pitch. We brought the official football for FIFA World Cup Qatar, becoming part of this historical out-of-the-world journey together with.
China has issued rules and guidelines that regulate the use of artificial intelligence within the country. The regulations are cautious when it comes to AI. This includes the trending AI chatbots, such as ChatGPT, AI-generated art, the many methods of utilizing AI in the health care sector and all forms of artificial intelligence, in general.
The Cyberspace Administration of China (CAC), has issued a set of rules to follow when incorporating AI. The CAC is the internet regulator and censor in China. The agency released guidelines on “deep synthesis”. The regulatory measures will take effect starting on Jan. 10, 2023.
