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What is aFresnellens used for

Fresnel lenses are still in operation today. According to the US Lighthouse Society, more than 75 Fresnel lenses are in use in American lighthouses, and businesses such as Dan Spinella’s Artworks Florida craft replicas that capture the beauty — and functionality — of the 19th-century breakthrough.

The highly contested space environment demands secure, reliable, and resilient communications. CACI’s low-risk optical communication, sensing, and processing technology enables the success of some of our nation’s most critical missions from the battlefield to deep space.

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CACI’s optical technologies enable highly secure communications in RF-challenged, restricted, or denied environments. Optical carrier frequencies can transmit more data with lower SWaP than comparable RF systems. Our optical technology has deployed onboard missions such as NASA’s integrated laser communications relay demonstration (LCRD) Low Earth Orbit User Modem and Amplifier Terminal (ILLUMA-T) now operating on the International Space Station.

CACI’s optical communication, sensing, and processing solutions are the U.S. government’s preferred choice for secure communications across several orbits and missions.

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CACI’s laser sensing technology enables near-term airborne and space light detection and ranging (LiDAR) applications mainly for intelligence, surveillance, and reconnaissance (ISR) missions, where there is an increased need for wide-area surveillance and long-range object identification.

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Our mission could not be more clear and more necessary: We have a duty to explain what just happened, and why, and what it means for you. We need clear-eyed journalism that helps you understand what really matters. Reporting that brings clarity in increasingly chaotic times. Reporting that is driven by truth, not by what people in power want you to believe.

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Whether it’s for land, air, or space, our people continually develop new applications for a range of missions – from tactical operations to national intelligence needs.

How does aFresnellens work

As the above video shows, these lenses satisfied a need for lighthouses that could shine farther and through dense layers of fog. The Fresnel lens, invented by Augustin-Jean Fresnel, helped do that by capturing all the light coming from a lamp, then magnifying and steering it in one direction. Suddenly, lighthouses became more useful and shipwrecks diminished.

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Regardless of the satellite manufacturer, CACI is often the secret ingredient to the most successful optical communications missions. We bring a rare synergy of research and development coupled with our valuable intellectual property to meet ever-increasing mission demands.

Our technologies increase efficiency through tradeoffs between range and bandwidth and enable low probability of intercept (LPI) and low probability of detection (LPD) with reduced size, weight, and power (SWaP) and inherent immunity to radio frequency (RF) interference and jamming.

CACI’s laser communications technology is aboard NASA’s Psyche spacecraft, a first-of-its-kind deep space and optical communications (DSOC) technology demonstration mission to the Psyche asteroid.

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Read Linda Braun’s latest commentary, “Lighting the Future: How CACI is Revolutionizing Optical and Photonic Solutions,” to learn more about our advancements in optical communications for our defense, intelligence, and other national security customers.

The most important part of a lighthouse might be one of the beautiful tools hidden inside of it: the Fresnel lens, a breakthrough that changed seafaring and saved lives.

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CACI’s CrossBeam was the first Space Development Agency (SDA)-compliant terminal to successfully complete optical communication terminal (OCT) interoperability testing - establishing a consistent data communication link with the reference modem.

Our multi-disciplinary teams, located in California, Florida, and New Jersey, design and build the most mature optical communications technologies right here in the United States. For more than two decades, we have developed advanced capabilities that meet and exceed U.S. government requirements – and are ready to deploy in support of deep space exploration and space operations from a variety of orbits, including low earth (LEO), medium earth (MEO), highly elliptical (HEO), and geostationary (GEO).

CACI produces advanced photonics-based communications, sensing, and processing technologies for space, air, land, and maritime environments. These include optical modems and terminals; high-power sources for free-space optical (FSO) communication and remote sensing; and space exploration systems.