Paper 13134-23
Paper 13134-23
Optical alignment of the Roman space telescope’s coronagraph instrument (Invited Paper)
21 August 2024 • 3:30 PM - 4:00 PM PDT | Conv. Ctr. Room 16A
Abstract
Optical alignment of the Coronagraph Instrument (CGI) was completed in time to begin its full-functional and environmental testing in late 2023 and its integration into the Roman Space Telescope (RST) in summer 2024. The optics of the CGI relay the optical pupil of the RST five times so that science operations, such as coronagraphy and wavefront control, can be conducted in the different internal pupil and image planes. Within the pupil relays, the CGI has multiple active optical assemblies, including a fast-steering mirror, a focus-control mirror, two deformable mirrors, and six precision alignment mechanisms that articulate different masks and apertures into the beam.
This paper details the many alignment steps required to successfully achieve the performance criteria of the CGI.
Presenter
Jet Propulsion Lab. (United States)
Dr. Monacelli is a Principal Optical Engineer and Technical Group Supervisor of the Optical Analysis and Simulation Group at NASA's Jet Propulsion Laboratory. He is a Laser Technology Professor at Pasadena City College and author of technician curricula for the National Science Foundation. He serves as the Education Committee Chair for the Optics and Electro-Optics Standards Council (OEOSC) where he helps develop optics standards.