Performances of an adaptive optics system for optical communication on 40cm telescope
Free-space optical communication between ground and satellites require the use of medium/large size telescopes. Unfortunately, when the transmitted beam passes through the atmosphere the wavefront is distorted by the time variant inhomogeneity of the refractive index, causing aberrations and scintillation at the receiver. With a telescope of 40cm aperture the correction of high order aberrations is necessary to sufficiently improve the efficiency of the fiber optic coupling. We present the development of an adaptive optic system with a 40cm telescope for SWIR optical communication link (λ=1550nm), composed by a Deformable Mirror (DM) and a Shack-Hartmann sensor for wavefront measurement.
CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Researcher at the Institute of Photonics and Nanotechonologies - CNR in Padova