The Optical Communications Group investigates new technologies to improve performance of free-space optical links between ground stations, aircrafts, satellites, etc. The particular channel behavior due to atmospheric turbulence causes phase and amplitude distortions of the incident laser beam.
Adaptive optics is a technology used to correct the wave-front distortions produced by the atmospheric turbulence. It senses the wave-front phase and uses a deformable mirror to apply a conjugated shape of it in order to reduce the atmospheric effects. In the optical laboratory, an adaptive optics setup has been built using a laser source (1550 nm), IR cameras, spatial light modulator, and a deformable mirror (DM), used to control a free space laser beam.
In the framework of this thesis, the student will have to study and implement a closed-loop adaptive optics setup based on interferometry, develop a Matlab script to characterize and control a deformable mirror, characterize and perform a statistical analysis of the coupled power in a single mode fiber.
It is a good opportunity to work in a cutting edge topic, gain experience on real optical hardware, and improve your engineering skills.
Study of Electrical Engineering / Optics & Photonics, C++ with intermediate to high level, Matlab programming with intermediate to high level and interest on free-space optical communications
Carlos Carrizo, Ph.D student, Ramon Mata Calvo, Ph.D