Commissioning the SALT fiber instrument feed

Janus D. Brink; Ockert J. Strydom; Darragh E. O'Donoghue; Eben P. Wiid

doi:10.1117/12.2055943

7 August 2014 Commissioning the SALT fiber instrument feed

Janus D. Brink, Ockert J. Strydom, Darragh E. O'Donoghue, Eben P. Wiid

Proceedings Volume 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation; 915121 (2014) https://doi.org/10.1117/12.2055943
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Lessons learnt during the design, integration and commissioning of the Southern African Large Telescope’s Fiber Instrument Feed and its guidance probe are presented along with initial on-sky performance results. Advances over the original design include enhanced target acquisition efficiency by including an imaging camera directly on the fiber-positioning stage, use of linear optical encoders on all motion stages, thermally compensated designs, a guidance probe optical design with much improved throughput as well as a new non-contact metrology process to accurately model the guider. The system has since been successfully used in commissioning the SALT High-Resolution Spectrograph.

Citation Download Citation

Janus D. Brink, Ockert J. Strydom, Darragh E. O'Donoghue, and Eben P. Wiid "Commissioning the SALT fiber instrument feed", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915121 (7 August 2014); https://doi.org/10.1117/12.2055943

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