Andrew received his PhD from the University of Natal, and subsequently spent several years working as an applied laser physicist, first for the South African Atomic Energy Corporation and then later in a private laser company where he was Technical Director. He is presently Chief Researcher at the CSIR National Laser Centre in South Africa, a member of the CSIR's Strategic Research Panel, and is the Research Group Leader of the Mathematical Optics group. Andrew sits on several international conference committees, Chairs SPIE's international conference on Laser Beam Shaping and is Chair of the OSA's Diffractive Optics and Holography technical group. He holds honorary positions at the University of Stellenbosch, the University of the Witwatersrand and the University of Kwazulu-Natal, and is a Fellow of SPIE. His interests include laser beams and resonators, digital holography and orbital angular momentum.