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Photonics

Hollow-core optical fibers enable secure communications in data centers, accurate sensing gyro for Aerospace applications

Conventional optical fibers are fabulously successful, but they have profound limitations. They contain a glass core at the center of the fiber through which light is transmitted. However, not only does this glass center limit the speed of the light as it passes through, but it also adversely affects other …

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Solar fiber optic lighting for daylighting of high-rise intensive buildings and military shelters

Conventional daylighting scheme employing windows and skylights are no longer so useful especially for daylighting of high-rise and intensive buildings. Residential buildings with limited natural lighting are generally lit by fuel-based electricity which contributes to increase of CO2 concentration in the atmosphere. Alternatively, the concentrated solar energy can be transmitted …

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DARPA DeMi developing technologies for space based telescope on it’s military CubeSat satellite for Space Surveillance Awareness

The volume of space between the Earth’s surface out to geosynchronous orbit is enormous—equivalent to 240,000 times all the Earth’s oceans. Yet the number of objects calling that volume home is growing all the time—not just with satellites but with debris of all kinds, natural and manmade. And keeping track …

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DARPA operationalizes Space Surveillance Telescope in Australia, earlier handed over to Air Force Space Command to protect satellites from orbiting junk and space weapons

A U.S.-developed space surveillance telescope has been assembled at a new facility in Western Australia and is expected to start operating in 2022, the U.S. Space Force Space and Missile Systems Center announced April 2020. The telescope, designed to track and identify debris and satellites more than 22,000 miles above Earth, …

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Hybrid Free Space Optics (FSO)/Radio Frequency (RF) communication systems can improve the performance of Free space optical communications

Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. “Free space” means air, outer space, vacuum, or something similar. FSO operates on the Line-of-Sight phenomenon, consisting of a LASER at source and detector at …

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Faraday rotator mirror

Michelson proposed an interferometric apparatus in 1890 following an earlier suggestion by Fizeau. The invention became the precursor of many important modern optic measurement techniques. The Michelson Interferometer, as it is called, is used to measure small optical path length changes. The classic Michelson Interferometer consists of two mirrors (one forming …

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Rugged, Sensitive Optical Fiber sensors for military sonars and monitoring military assets and earthquakes

The fiber optic sensors also called as optical fiber sensors use optical fiber or sensing element.  These Sensors can measure a large variety of parameters, such as temperature, pressure, strain, refractive index, vibrations, displacements, bending, loading, and liquid level or concentration of chemical species. Fiber optic sensors have become a …

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DARPA DODOS develops Optical frequency synthesizers (OFC) chips to enhance LIDAR, coherent communications, and chemical sensing

The need for better radar in World War II drove the development of radio frequency control, and its miniaturization in subsequent decades revolutionized a host of military and consumer applications. The generation of accurate signal frequencies from a single reference oscillator called microwave frequency synthesis, brought about many advanced technologies …

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Indian Photonics technology and market growth is on the verge of explosion

Photonics is the physical science of light (photon) generation, detection, and manipulation through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Though covering all light’s technical applications over the whole spectrum, most photonic applications are in the range of visible and near-infrared light.   Photonic systems provide many desirable …

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Terahertz technology breakthroughs enabling Next Generation Military Communications and Radars

The goal of future generation networks is to meet the future communication needs of the information societies such as Smart infrastructures, Smart City, Smart Grid, Smart Health, and Smart Transportation. The future will be a completely data-driven society in which people and things are connected universally, almost instantaneously (milliseconds) to …

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