Researchers have demonstrated a record-breaking 450 terabits per second optical transmission over a field-deployed legacy fiber in London, UK. The achievement uses new optical-amplifier technologies to support ultra-wideband signals, exceeding previous records and unlocking previously untapped capacity in standard optical fibers.
Researchers at NICT successfully demonstrated simultaneous communications with 10 devices using a hybrid signal processing method combining quantum annealing and classical computing. This breakthrough addresses the massive connectivity requirements of 6G networks, enabling real-time detection for up to 60,000 possible signal combinations.
NICT successfully demonstrated 2 Tbit/s free-space optical communication between two types of small portable optical terminals separated by 7.4 km in an urban environment with atmospheric turbulence, marking a major step forward in the practical application of Non-Terrestrial Networks for Beyond 5G/6G.
Researchers have demonstrated a record-breaking 430 terabits per second (Tb/s) optical transmission using a novel approach that triples the capacity of standard-compliant cutoff-shifted optical fibers. The technology offers high throughput with reduced complexity, while utilizing existing optical fiber infrastructure.
Researchers successfully demonstrated entanglement swapping using sum-frequency generation between single photons with a high signal-to-noise ratio. This achievement is expected to contribute to the miniaturization and efficiency improvement of photonic quantum information processing circuit, as well as the extension of transmission di...
Researchers have successfully demonstrated next-generation error correction codes to mitigate the impact of atmospheric turbulence on ground-to-satellite laser communications. The new codes significantly improved communication quality compared to conventional schemes, enabling practical implementation of ground-to-satellite laser links.
Researchers developed world's first practical surface-emitting laser using quantum dots, advancing miniaturization and energy efficiency of light sources. The innovation enables high-performance, scalable structures and cost reductions through mass production.
A new world record has been set for petabit-class transmission over a distance of 1,808 km using a 19-core optical fiber with low loss across multiple wavelength bands. The demonstration marks a major step forward in developing scalable, high-capacity networks and addressing the world's growing demand for data.
A VR flight experience has been shown to reduce both physiological and subjective fear responses to heights. The degree of fear reduction correlates with the extent to which participants felt they could transition to a safe state through self-initiated actions.
Researchers found that participants took more risks when interacting with avatars displaying facial expressions compared to real human faces. The study suggests that the amygdala plays a key role in driving increased risk-taking behavior in avatar-mediated communication.
Researchers found that brain areas respond to relative quantity rather than absolute quantity, with representations becoming more pronounced along the pathway from parietal to frontal lobe. This flexible nature of numerical quantity processing advances our understanding of how the brain handles other magnitude concepts like time and size.
Researchers at NICT and partners developed a new type of superconducting flux qubit that can operate optimally in zero magnetic field. The qubit boasts a coherence time of 1.45 microseconds, marking a significant improvement over previous designs.
A novel, fast and high-quality neural text-to-speech model was successfully developed using a Transformer encoder + ConvNeXt decoder and MS-FC-HiFi-GAN. The model can synthesize one second of speech at high speed in just 0.1 seconds using a single CPU core, achieving eight times faster synthesis than conventional methods.
Researchers found that motor memories are influenced by cognitive processes, not just physical actions. The study used football penalty shootouts and robotic handle movements to demonstrate the brain's differentiation of actions based on decision uncertainty.
A team at NICT set a new world record for data-rate transmission in a standard optical fiber, reaching 402 Tb/s and increasing the aggregate bandwidth to 37.6 THz. The demonstration used novel technologies to access new wavelength regions, enabling future optical communication infrastructure to meet growing demands.
Researchers developed a probabilistic approach to generate optimal sequences for execution on quantum computers, reducing search time by several orders of magnitude. The new method enables efficient searches within classical computational resources, contributing to the realization of the quantum Internet and improved performance.
Researchers from NICT and partners demonstrated a record-breaking data-rate of 22.9 petabits per second using a single optical fiber, more than double the previous world record. The achievement showcases the potential for ultra-large capacity optical communication networks.
Researchers at NICT developed a novel structure for superconducting strip photon detectors, achieving high performance and polarization independence. The new technology enables the creation of wider strips, increasing productivity and reducing fabrication costs.
Researchers developed a system to transmit high-capacity terahertz-wave signals to different locations using direct terahertz-optical conversion and fiber-wireless technology, achieving 32 Gb/s capacity. The system overcomes radio communications limitations in the terahertz band, expanding communication coverage.
Researchers have created a 19-core optical fiber with a standard cladding diameter, achieving a record transmission capacity of 1.7 petabits per second over 63.5 km. This design uses randomly coupled multi-core fibers and MIMO digital signal processing to minimize power consumption.
Scientists successfully transmit and switch 15-mode multiplexed signals over a 6.1 km long multi-mode fiber ring in Italy, demonstrating a new approach to increasing fiber network capacity. This achievement is significant for future communication systems beyond 5G.
Researchers demonstrate world's first 55-mode transmission at 1.53 petabits per second, outperforming previous records by three times in spectral efficiency. The technology holds promise for future high-capacity backbone networks and the development of Beyond 5G infrastructure.
Researchers at NICT have developed a new systematic method to identify the optimal quantum operation sequence, enabling efficient task execution and contributing to improving quantum computer performance and reducing environmental impact. The method uses GRAPE algorithm to analyze all possible sequences of elementary quantum operations.
Researchers at NICT developed an organic electro-optic polymer for visible light, significantly improving efficiency and miniaturization. The new modulator has lower absorption loss and higher electro-optic coefficient in visible light compared to conventional optical modulators.
Researchers from NICT demonstrated a record-breaking 1.02 petabit per second transmission capacity in a 4-core MCF with a standard 0.125 mm cladding diameter, exceeding 20 THz optical bandwidth with 801 parallel wavelength channels.
Researchers developed an all-nitride superconducting qubit using niobium nitride on a silicon substrate, achieving long coherence times of up to 22 microseconds. The breakthrough paves the way for large-scale integration and potential applications in quantum computers and nodes.
Researchers at NICT unraveled a neural correlate of Pavlovian conditioning, discovering that alteration in information processing by feeding command neurons governs behavioral change. The experimental system made possible real-time observation of cell-cell connection for memory formation.
Researchers developed the first transparent fiber–millimeter-wave–fiber system in the 100-GHz band using a low-loss broadband optical modulator with direct photonic down-conversion. The system successfully demonstrated high-speed transmission of over 70 Gbit/s over a wired and wireless converged system.
The National Institute of Information and Communications Technology has developed a highly-accurate and wide-measurable band terahertz frequency counter. The counter's measurement uncertainty is less than 1 x 10^-16, making it suitable for various applications including high-resolution spectroscopy of ultracold molecules.
Researchers from NICT demonstrated a world record 319 Tb/s long-haul transmission of wideband S, C and L-bands signal using 552 PDM-16QAM channels in a 4-core optical fiber. The system enabled transmission distance over 3,001 km with both erbium and thulium doped-fiber amplifiers and distributed Raman amplification.
The NIRVANA Kai platform has been enhanced to support IPv6, allowing real-time visualization of packets and improved alert collection. This update is expected to simplify security operations in IPv6 networks.
The HF-START simulator estimates and provides shortwave propagation information in real-time under realistic ionospheric fluctuations based on ground-based observations and model calculations. The system allows users to visualize radio wave propagation paths and clarify the impact of space weather on communication.
Researchers at NICT and TOYOTA have successfully implemented stabilization technology for wireless communications in manufacturing systems. This technology allows for real-time visualization of the wireless environment and coordinated control of different systems, detecting unregistered terminals and suppressing radio congestion. The s...
A new scanless high-speed holographic fluorescence microscopy system has been developed with submicron resolution, enabling 3D sensing of nanoparticles and color-multiplexed holographic fluorescence imaging. The system achieves measurements in less than 1 millisecond using digital holography and a phase modulator.
Researchers demonstrated the world's first transmission exceeding 1 petabit per second in a single-core multi-mode optical fiber, increasing the current record data rate by more than 2.5 times. This achievement showcases the potential of single-core multimode fibers for high-capacity transmission using standard manufacturing processes.
Researchers have successfully connected two optical atomic clocks in Italy and Japan, separated by 8700 km, using radio telescopes observing distant stars. This achievement could provide a global infrastructure for high-precision timekeeping and unlock new possibilities for studying fundamental physics and general relativity.
Researchers at NICT have developed a new superconducting hot electron bolometer mixer (HEBM) using magnetic materials, achieving low noise performance of about 570 K and wide IF bandwidth of 6.9 GHz at 2 THz frequency range.
Researchers found that social media information can predict various personality traits and attributes, such as extraversion and IQ, using Twitter data. The study's machine learning approach may provide a new way for mental health diagnostics and personalized nudges.
A color-multiplexed holography system has been developed to record 3D information of objects illuminated by a white-light lamp and self-luminous specimens as a single multicolor hologram. The system acquires color 3D information with only a single-shot exposure and no color filter array.
Researchers successfully demonstrated high-capacity transmission of 172 terabit/s over 2040km using a standard outer diameter coupled-3-core optical fiber. This achievement more than doubles the current world record and paves the way for early adoption in backbone high-capacity transmission systems.
Researchers have successfully demonstrated a world record transmission capacity of 10.66 peta-bit per second over a 38-core 3-mode optical fiber, achieving a spectral efficiency of 1158.7 bits per second per Hz. This breakthrough enables a drastic increase in data-rate per fiber for intra- and inter data-center communication.
A secure data backup system has been developed to store and restore medical records via a satellite link, enabling prompt restoration within 9 seconds. The system uses secret sharing and secure communications technologies to protect confidential personal information.
A new warning system, WASAVIES, can estimate radiation doses due to solar energetic particles (SEP) up to 100 km above the ground in real-time. This system enables aircrew radiation dose monitoring and provides information for aviation operation management.
The National Institute of Information and Communications Technology (NICT) has developed a large-scale optical switching testbed capable of handling 1 Petabit per second optical signals. This breakthrough demonstrates the feasibility of ultra-high capacity petabit-class backbone networks, which can support increasing internet services ...
Researchers discover a new neural mechanism involving the dorsal anterior cingulate cortex that explains how anxiety deteriorates physical performance. Transcranial magnetic stimulation to this region rescues performance deterioration, providing a potential therapeutic strategy for athletes and musicians.
The study reveals that overlapping regions in premotor and parietal cortices represent sequences in multiple levels of motor hierarchy. The primary motor cortex uniquely represents individual finger movements. This finding provides insights into the brain's complex representation of motor sequences.
Researchers at NICT and Furukawa Electric successfully demonstrated a record SDM transmission experiment, achieving 715 Tb/s over 2009 km using a 19-core optical amplifier. The demonstration showcases the potential of high-core count cladding pumped EDFAs for long-haul transmission in both C and L bands.
The development of a vertical Ga2O3 metal-oxide-semiconductor field-effect transistor enables higher current drives without enlarging chip size, simplified thermal management, and improved field termination. The device shows decent electrical properties, paving the way for new generations of low-cost power electronic devices.
A study found that neural tissue density in a specific white matter pathway, the vertical occipital fasciculus (VOF), correlates with individual differences in stereoacuity. The VOF connects key visual areas involved in stereopsis and is crucial for understanding its neural basis.
Researchers achieved 20 Gbit/s data transmission over a converged fiber-wireless network in the 90-GHz band, enabling smooth and uninterrupted communication for high-speed trains. Ultra-fast switching of optical paths to remote radio stations was also demonstrated, making handover-free communication possible.