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Data Transmission

All articles tagged with #data transmission

Hollow-core fiber field test hits 1.2 Tb/s per wavelength, 51.3 Tb/s total
innovation13 days ago

Hollow-core fiber field test hits 1.2 Tb/s per wavelength, 51.3 Tb/s total

Chinese researchers demonstrated the world’s first field trial of a hollow-core fiber transmission system capable of 1.2 Tb/s per wavelength, achieving a total of 51.3 Tb/s over roughly 128 miles without repeaters. The advance uses adaptive per-wavelength rate control, flexible channel power allocation, and a cascaded high-power amplifier design with up to 33.5 dBm output, along with safeguards to monitor stability and prevent failures, underscoring hollow-core fiber’s potential for faster, lower-latency backbone networks.

via Interesting Engineering|
#data-transmission#high-power-amplification#hollow-core-fiber
Laser-Driven Data for Artemis II: Rossoni’s Mission-Critical Role
space2 months ago

Laser-Driven Data for Artemis II: Rossoni’s Mission-Critical Role

Peter Rossoni, flight manager for the Orion Artemis II Optical Communications System, oversaw NASA’s first laser communications link on a crewed deep-space mission, enabling up to 260 Mbps downlink and transferring about 450 gigabytes of data from Orion to Earth over the roughly 10-day Artemis II test, while integrating laser and radio networks and ensuring robust mission communications.

via NASA (.gov)|
#artemis-ii#data-transmission#laser-communications
Revolutionary Hollow-Core Optical Fibers Promise Faster Internet Speeds
technology10 months ago

Revolutionary Hollow-Core Optical Fibers Promise Faster Internet Speeds

A new hollow optical fiber design using glass 'straws' could significantly increase data capacity and transmission distances, potentially leading to faster and more efficient Internet and telecommunications systems. Developed by researchers at the University of Southampton and produced by the startup Lumenisity, this innovation promises transformative improvements in data transfer speeds, especially in data centers.

via Nature|
#data-transmission#hollow-glass-tubes#internet-speed
Physicists Develop Light Hurricanes for Data Transfer
science-and-technology1 year ago

Physicists Develop Light Hurricanes for Data Transfer

Researchers at Aalto University have developed a method to create light vortices using metallic nanoparticles arranged in quasicrystal geometries. These vortices, akin to tiny hurricanes of light, can potentially carry significantly more data through optical fibers, enhancing data transmission capabilities. The study, published in Nature Communications, explores the relationship between symmetry and vortex formation, offering a new approach to encoding information in light for telecommunications.

via Phys.org|
#data-transmission#light-vortices#nanoparticles
Researchers Set New Data Transmission Speed Record at 402 Tbps
technology2 years ago

Researchers Set New Data Transmission Speed Record at 402 Tbps

Researchers from Aston Institute of Photonic Research have set a new world record for data transmission speed at 402 terabits per second using standard optical fiber. This breakthrough, achieved by operating across six wavelength bands, could stabilize broadband costs amid rising demand and significantly enhance global communication infrastructure.

via SciTechDaily|
#broadband#data-transmission#optical-fiber
"NASA Solves Voyager 1 Glitch After Months of Debugging"
spacetechnology2 years ago

"NASA Solves Voyager 1 Glitch After Months of Debugging"

NASA engineers have identified a small portion of corrupted memory in the flight data subsystem (FDS) as the cause of Voyager 1's unreadable data transmission, likely due to a malfunctioning chip. The issue, possibly caused by an energetic particle or the age of the silicon, has hindered the spacecraft's normal operations. It may take weeks or months to find a solution, but NASA remains optimistic about restoring Voyager 1's ability to send usable science and engineering data.

via Neowin|
#data-transmission#nasa#space-exploration
"Unraveling Voyager 1's Glitch: NASA Engineers Identify the Cause"
spacetechnology2 years ago

"Unraveling Voyager 1's Glitch: NASA Engineers Identify the Cause"

NASA engineers have identified corrupted memory hardware in the Voyager 1 spacecraft's flight data system as the cause of the probe sending nonsensical data to mission control. The issue began in May 2022 and resurfaced in December 2023, prompting the team to send a command to pinpoint the corrupted section. Approximately 3% of the FDS memory has been corrupted, hindering normal operations, but the engineers are working on finding a solution to enable Voyager 1 to resume transmitting data and continue its deep space journey.

via Gizmodo|
#data-transmission#nasa#space-exploration
"Breakthrough: Fiber Optic Speeds Surpass Home Broadband by 4.5 Million Times"
technology2 years ago

"Breakthrough: Fiber Optic Speeds Surpass Home Broadband by 4.5 Million Times"

Researchers from Aston University in the UK have achieved transmission speeds of 301,000,000 megabits per second using existing fiber optic infrastructure, surpassing average broadband speeds by 4.5 million times. By utilizing previously unused wavelength bands, the researchers were able to significantly increase data transmission rates without the need to replace current fiber infrastructure. While not the fastest transmission ever achieved, this breakthrough could lead to substantial advancements in data delivery capabilities.

via TechSpot|
#aston-university#broadband#data-transmission
"Voyager 1's Mysterious Data Transmission from Interstellar Space"
space-exploration2 years ago

"Voyager 1's Mysterious Data Transmission from Interstellar Space"

Voyager 1, the farthest human-made object, has been sending a repeating pattern of 1s and 0s to NASA from interstellar space, likely due to an issue with its Flight Data System. This has halted the transmission of science data and updates about the probe's health and status. NASA is working to resolve the problem, but it may take months, and the spacecraft's plutonium-powered system is running out. Eventually, Voyager 1 will cease sending data, but it will continue its journey through the space between stars.

via IFLScience|
#data-transmission#interstellar-space#nasa