Spatiotemporal Manipulation of Optical Vortices

Date of Award


Degree Name

Ph.D. in Electro-Optics and Photonics


Department of Electro-Optics and Photonics


Andy Chong


The purpose of this dissertation is to realize the space-time manipulation of spatiotemporal vortices by controlling their phase. Specifically, lens systems can provide the spatial phase, thereby changing the orientation of the optical vortex orbital angular momentum by adding torque. The dispersion effect can realize the precise control of the wave packet in the temporal domain. Adjusting the state of the laser to a partial coherent state can explore the effect of randomness on vortices. We also analyzed how the physical parameters of the vortex evolve under variation of each of these conditions, which gives us a general heuristic framework for understanding STOVs phenomena.


Optics, Physics, Engineering, spatiotemporal optical vortex, orbital angular momentum, Lens system, third-order dispersion, partial temporal coherence, ultrafast fiber laser

Rights Statement

Copyright © 2021, author.