Microgate picks Vicor to power ESO’s Extremely Large Telescope adaptive optics

Microgate, in collaboration with the European Southern Observatory (ESO), is working on constructing the adaptive mirror for the latest generation of Extremely Large Telescopes (ELTs). Vicor has been chosen to provide the DC-DC converter power modules to support the adaptive optics used by this innovative mirror.

ELTs play a crucial role in the exploration of new galaxies, stars, and planets. The main challenge faced by these telescopes is capturing light from the distant past to gain deeper insights into the origins of our Universe.

Located in the Atacama Desert in Chile, the new ELT being developed by ESO will feature a groundbreaking five-mirror optical design that will enable it to reveal the Universe in unparalleled detail. With a primary mirror, M1, made up of hundreds of hexagonal segments, this giant 39-metre concave mirror will collect light from distant stars and galaxies and reflect it to the secondary mirror (M2).

The adaptive M4 mirror is a key component of the ELT, being the largest deformable mirror ever built. It can be distorted and adjusted to correct for atmospheric turbulence and telescope vibrations, ensuring that the images produced are sharper than those of any other telescope. The mirror is made of highly specialised glass and utilises voice-coil motors driven by a precise current driver and permanent magnets to deform its surface.

The Vicor DCM3623 series of DC-DC converter power modules has been specifically chosen by Microgate to power the adaptive optics system. These modules are mounted on the underside of a gas-cooled cold plate, providing power to multiple motor channels and simplifying the wiring process. Microgate engineers have praised the high efficiency and compact design of the Vicor modules, stating that they have been the preferred choice for over a decade.

With the development of the ESO Extremely Large Telescope, the world of astronomy is set to enter a new era of discovery and exploration. The advanced technology being incorporated into this telescope, from the innovative mirror design to the sophisticated adaptive optics system, promises to revolutionise our understanding of the Universe and unlock new mysteries waiting to be revealed.