The infrared imaging spectrograph (IRIS) for TMT: on-instrument wavefront sensors and NFIRAOS interface
David Loop, Vlad Reshetov, Murray Fletcher, Robert Wooff, Jennifer, Dunn, Anna Moore, Roger Smith, David Hale, Richard Dekany, Lianqi Wang, Brent, Ellerbroek, Luc Simard, David Crampton
TL;DR
This paper details the design and integration of the IRIS spectrograph for TMT, focusing on on-instrument wavefront sensors and its interface with the NFIRAOS adaptive optics system.
Contribution
It presents the concept study and baseline design of IRIS's wavefront sensors and NFIRAOS interface, including system engineering and optical/mechanical design aspects.
Findings
Successful conceptual design of wavefront sensors
Effective integration with NFIRAOS system
Comprehensive system engineering and modeling results
Abstract
The InfraRed Imaging Spectrograph (IRIS) is a first light client science instrument for the TMT observatory that operates as a client of the NFIRAOS facility multi-conjugate adaptive optics system. This paper reports on the concept study and baseline concept design of the On-Instrument WaveFront Sensors (OIWFS) and NFIRAOS interface subsystems of the IRIS science instrument, a collaborative effort by NRC-HIA, Caltech, and TMT AO and Instrument teams. This includes work on system engineering, structural and thermal design, sky coverage modeling, patrol geometry, probe optics and mechanics design, camera design, and controls design.
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