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Research Continues on Secure, Mobile, Quantum Communications
October 28, 2009ARLINGTON, Va. -- Researcher Dr. David H. Hughes of the Air Force Research Laboratory in Rome, N.Y. is leading a team investigating long-distance, mobile optical links imperative for secure quantum communications capabilities in theater.
Hughes and his Air Force Office of Scientific Research-funded team have conducted high data-rate experiments using an optical laser link, a tool which exploits the quantum noise of light for higher security. The system uses adaptive optics for transmission of high data-rate video and audio signals over long distances.
AOptix Technologies, a developer of ultra-high bandwidth laser communication solutions for government and commercial markets has joined forces with AFOSR and AFRL to conduct flight tests at 10,000 feet to evaluate the performance of the high-altitude, air-to-ground, quantum communications links.
Up to this point, the challenge with free space optical links, which use fiber optics for transmission have been the turbulence or distortions from temperature differences that cause motion or wind in the atmosphere.
"When you transmit information through turbulence (motion in the atmosphere caused by turbulent cells or "wind") it's distorted just like the information coming from the light reflected off a distant, twinkling star to your eye. It's fuzzy," said Hughes. "You have to overcome that by using adaptive optics to rectify the distortion and get a better quality signal."
As of right now, Hughes and his team have established an optical link without distortion in test situations at a distance of 35 kilometers in both stationary and flight situations. The next flight test will aim for increased altitudes to demonstrate further air-to-ground distances.
"If we can now put one link on the ground and one on a demo aircraft, it wouldn't take much to apply the technology to operational aircraft for the Air Force," said Hughes.
"This new capability may even save lives because it will enable the military to access ultra-high bandwidth ISR (intelligence, surveillance reconnaissance) information in real-time from various manned and unmanned airborne platforms," said Dean Senner, President & CEO of AOptix Technologies.
ABOUT AFOSR:
The Air Force Office of Scientific Research, located in Arlington, Virginia, continues to expand the horizon of scientific knowledge through its leadership and management of the Air Force's basic research program. As a vital component of the Air Force Research Laboratory, AFOSR's mission is to discover, shape, and champion basic science that profoundly impacts the future Air Force.
ABOUT AFRL:
The Air Force Research Laboratory is the heart of science and technology for the United States Air Force. AFRL is responsible for developing the systems crucial to aerospace superiority. With a workforce of approximately 9,600 people, the laboratory's wealth of talented individuals help AFRL lead science and technology development through in-house and contractual programs. Additionally, the laboratory outsources approximately 75% of its budget to industry, academia, and the international community - leveraging the world's knowledge to provide the most innovative science and technology to the Air Force.
ABOUT AOPTIX TECHNOLOGIES:
AOptix Technologies is a privately funded company founded in 2000. With core technology expertise in the application of advanced adaptive optics, they develop free space optical communications and iris biometrics based identification solutions for both government and commercial markets. For additional information, please see www.aoptix.com.
Wright-Patterson Air Force Base
Up to this point, the challenge with free space optical links, which use fiber optics for transmission have been the turbulence or distortions from temperature differences that cause motion or wind in the atmosphere.
"When you transmit information through turbulence (motion in the atmosphere caused by turbulent cells or "wind") it's distorted just like the information coming from the light reflected off a distant, twinkling star to your eye. It's fuzzy," said Hughes. "You have to overcome that by using adaptive optics to rectify the distortion and get a better quality signal."
As of right now, Hughes and his team have established an optical link without distortion in test situations at a distance of 35 kilometers in both stationary and flight situations. The next flight test will aim for increased altitudes to demonstrate further air-to-ground distances.
"If we can now put one link on the ground and one on a demo aircraft, it wouldn't take much to apply the technology to operational aircraft for the Air Force," said Hughes.
"This new capability may even save lives because it will enable the military to access ultra-high bandwidth ISR (intelligence, surveillance reconnaissance) information in real-time from various manned and unmanned airborne platforms," said Dean Senner, President & CEO of AOptix Technologies.
ABOUT AFOSR:
The Air Force Office of Scientific Research, located in Arlington, Virginia, continues to expand the horizon of scientific knowledge through its leadership and management of the Air Force's basic research program. As a vital component of the Air Force Research Laboratory, AFOSR's mission is to discover, shape, and champion basic science that profoundly impacts the future Air Force.
ABOUT AFRL:
The Air Force Research Laboratory is the heart of science and technology for the United States Air Force. AFRL is responsible for developing the systems crucial to aerospace superiority. With a workforce of approximately 9,600 people, the laboratory's wealth of talented individuals help AFRL lead science and technology development through in-house and contractual programs. Additionally, the laboratory outsources approximately 75% of its budget to industry, academia, and the international community - leveraging the world's knowledge to provide the most innovative science and technology to the Air Force.
ABOUT AOPTIX TECHNOLOGIES:
AOptix Technologies is a privately funded company founded in 2000. With core technology expertise in the application of advanced adaptive optics, they develop free space optical communications and iris biometrics based identification solutions for both government and commercial markets. For additional information, please see www.aoptix.com.
Wright-Patterson Air Force Base
Quantum Communications Current Events and Quantum Communications News RSSUp-scale: Frequency converter enables ultra-high sensitivity infrared spectrometry
In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology (NIST) have developed a new, highly sensitive, low-cost technique for measuring light in the near-infrared range.
NIST develops novel ion trap for sensing force and light
Miniature devices for trapping ions (electrically charged atoms) are common components in atomic clocks and quantum computing research. Now, a novel ion trap geometry demonstrated at the National Institute of Standards and Technology (NIST) could usher in a new generation of applications because the device holds promise as a stylus for sensing very small forces or as an interface for efficient transfer of individual light particles for quantum communications.
Scientists demonstrate all-fibre quantum logic
A team of physicists and engineers have demonstrated all-fibre quantum logic, where single photons are generated and used to perform the contolled-NOT quantum logic gate in optical fibres with high fidelity.
First tunable, 'noiseless' amplifier may boost quantum computing, communications
Researchers at the National Institute of Standards and Technology (NIST) and JILA, a joint institute of NIST and the University of Colorado (CU) at Boulder, have made the first tunable "noiseless" amplifier.
ESA takes steps toward quantum communications
A team of European scientists has proved within an ESA study that the weird quantum effect called 'entanglement' remains intact over a distance of 144 kilometres.
Long-distance record -- 'Quantum keys' sent 200 kilometers
Particles of light serving as "quantum keys"-the latest in encryption technology-have been sent over a record-setting 200-kilometer fiber-optic link by researchers from the National Institute of Standards and Technology (NIST), NTT Corp. in Japan, and Stanford University.
LSU professor resolves Einstein's twin paradox
Subhash Kak, Delaune Distinguished Professor of Electrical and Computer Engineering at LSU, recently resolved the twin paradox, known as one of the most enduring puzzles of modern-day physics.
NIST physicists boost 'entanglement' of atom pairs
Physicists at the Commerce Department's National Institute of Standards and Technology (NIST) have taken a significant step toward transforming entanglement-an atomic-scale phenomenon described by Albert Einstein as "spooky action at a distance"-into a practical tool.
LANL/NIST team sends quantum encryption 'keys' over record distances
Using an innovative sensor for detecting single photons, the smallest particles of light, scientists from Los Alamos National Laboratory (LANL), the National Institute of Standards and Technology (NIST) and Albion College (Albion, Mich.) have set two significant distance records for distributing "keys" (or codes) for quantum encryption, the most secure method known for protecting the privacy of information.
Physicists Entangle Photon and Atom in Atomic Cloud
uantum communication networks show great promise in becoming a highly secure communications system. By carrying information with photons or atoms, which are entangled so that the behavior of one affects the other, the network can easily detect any eavesdropper who tries to tap the system.
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