Athermal Laser Launch Telescopes

F. Kamphues, R. Henselmans, N. Rijnveld, M. Lemmen, N. Doelman & D. Nijkerk
ESO has developed a concept for a compact laser guide star unit for use in future Adaptive Optics (AO) systems. A small powerful laser is combined with a telescope that launches the beam, creating a single modular unit that can be mounted directly on a large telescope. This approach solves several of the stability problems experienced with a number of first generation laser guide star systems around the world. Four of these compact laser guide...