23FKZ13353

Laser Projection Subunit.

Demcon and TNO have developed a groundbreaking Laser Projection Subunit (LPS) system for the Extremely Large Telescope (ELT). This system is designed to generate an artificial star in the mesosphere as a reference for ELT’s adaptive optics system. It uses a 589nm laser to generate an artificial star in the mesosphere. The LPS system can handle azimuth positions and temperature variations of the telescope, which is crucial for accurate observations. We can also support other telescope systems with this advanced technology, enhancing their adaptive optics and overcoming the effects of atmospheric turbulence. This marks a significant step forward in improving astronomical observations.

Highlights

  • Field of view 7 arcmin
  • Telescope Zenith distance 0 deg. - 90deg.
  • Wavefront error <65 nm rms
  • Pointing resolution <0.2 arcsec
  • Polarization degree >0.82
  • Optical throughput >88%
  • Wavelength 589.159 nm
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The standout feature of our LPS system is the optical quality, its use of line replacement units and its inline diagnostic tools, which ensure minimal maintenance and significantly reduce downtime. This cutting-edge design guarantees that your operations remain smooth and efficient, allowing you to focus on what truly matters. Experience the future of low-maintenance technology with our LPS system!

Obviously, other telescope environments may require tailorization. As design specialists, Demcon focal is well-equipped to explore customizations with you. If you have any questions or require further information, don't hesitate to reach out. The dedicated teams at TNO and Demcon are eager to explore the possibilities with you.

Get inspired! The laser projection systems are being built in the Netherlands by TNO and Demcon, and the first one has now successfully passed a review by ESO engineers. Three of these lasers are part of the GRAVITY+ upgrade to ESO’s Very Large Telescope Interferometer (VLTI). The remaining six lasers will be installed on ESO’s Extremely Large Telescope (ELT), currently under construction not far from the VLTI. (New laser-sharp vision for Paranal’s facilities | ESO Nederland!)

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