University of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext 32215
Fax: (519) 746-8115
We develop a characterization platform for aberrations and polarizations of optical components in quantum communication with satellites. The aberration characterization system utilizes a scanning pentaprism technique for precise measurements of local wavefront slopes. The transmitted wavefront is reconstructed by a conventional least-squares method with the measured precision better than 10nm. Our polarization characterization system employs a six-axis collaborative robot arm, enabling the polarization characterization at any position and direction with consistent precision. An imaging polarimeter analyzes incident polarization states while monitoring the variation of the angle of incidence caused by imperfect orientations of the robot arm. The two systems support the development of optical components in Canada's Quantum Encryption and Science Satellite (QEYSSat) mission.
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The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.