Available student project - Coherently combined laser systems for space technologies and free space optical communications
- Photonics, Lasers and Nonlinear Optics
Space debris manoeuvring concept using a coherently combined laser system (optical phased array).
The ability to reliably transmit a laser field from Earth to Space is a challenging task due to fluctuations in Earth's atmosphere caused by wind and turbulence, where local areas of high/low pressure act as a lens to change the propagation of a light. Adaptive Optic (AO) systems are an enabling technology used in the large optical telescopes to overcome the distortion such lensing induces. Consisting of one or more deformable mirrors, an AO system senses the the time-varying image distortions and manipulates its mirror system to undo thier impact, allowing the recovery of the telescopes `diffraction-limited' angular resolution (set by its size).
Such AO systems may also be used in ranging or communication environments, where a local laser is transmitted from the telescope. Here the AO system `pre-distorts' the outgoing laser to minimise distorts through the atmosphere. One modern method of coherently combining lasers potentially allows potential improvement of the AO system by modifying the transmission `phase' of each laser to be combined. This form of `Optical Phased Array' has the potential to greatly simplify Earth-to-Space laser transmission. This project aims to investigate potential architectures for such hybrid systems, focussing on interstellar propulsion.
Optics and lasers, MATLAB
Preferred: PHYS2017 Wave and Optics, ENGN3223 Control Systems
This research project can be tailored to suit students of the following type(s)
- 3rd year special project
- PhB (1st year)
- PhB (2nd or 3rd year)
- Honours project
- Phd or Masters