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Laser Guide Star System Installed at Chile's Very Large Telescope

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The first of four laser guide star systems developed by Toptica Photonics AG of Germany and MPB Communications Inc. of Canada has been installed and brought online at the European Southern Observatory's Very Large Telescope in Chile. Previous systems used to create sodium laser guide stars have relied on power-limited and high-maintenance dye lasers or sum-frequency mixing of solid-state lasers, according to Toptica. The SodiumStar laser projects a powerful orange beam into the cool air in Chile's Atacama Desert. Courtesy of Julien Girard/ESO. The new system, called SodiumStar,...Read full article

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    Published: May 2015
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    adaptive optics
    Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of atmospheric distortions. The Earth's atmosphere can cause light passing through it to experience distortions, resulting in image blurring and degradation in various optical applications, such as astronomical observations, laser communications, and imaging systems. Adaptive optics systems actively adjust the optical elements in real-time to compensate for these distortions. Key...
    Businessdiode lasersEuropeAmericasChileGermanyCanadaTopticaMPB CommunicationsastronomyVery Large TelescopeVLTEuropean Southern ObservatoryESOguide starLasersadaptive opticsTech Pulse

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