Adaptive optics fed single-mode spectrograph for high-precision Doppler measurements in the near-infrared

C. Schwab; N. Jovanovic; T. Feger; M. Bakovic; Y. V. Gurevich; J. Stürmer; R. Apodaca; L. Vanzi; S. Rukdee; J. S. Lawrence; D. W. Coutts; N. Cvetojevic; S. Mahadevan; G. K. Stefánsson; S. P. Halverson; O. Guyon

doi:10.1117/12.2234407

22 July 2016 Adaptive optics fed single-mode spectrograph for high-precision Doppler measurements in the near-infrared

C. Schwab, N. Jovanovic, T. Feger, M. Bakovic, Y. V. Gurevich, J. Stürmer, R. Apodaca, L. Vanzi, S. Rukdee, J. S. Lawrence, D. W. Coutts, N. Cvetojevic, S. Mahadevan, G. K. Stefánsson, S. P. Halverson, O. Guyon

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 991274 (2016) https://doi.org/10.1117/12.2234407
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We present the design for a high resolution near-infrared spectrograph. It is fed by a single-mode fiber coupled to a high performance adaptive optics system, leading to an extremely stable instrument with high total efficiency. The optical design is a cross-dispersed Echelle spectrograph based on a white pupil layout. The instrument uses a R6 Echelle grating with 13.3 grooves per mm, enabling very high resolution with a small beam diameter. The optical design is diffraction limited to enable optimal performance; this leads to subtle differences compared to spectrographs with large input slits.

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C. Schwab, N. Jovanovic, T. Feger, M. Bakovic, Y. V. Gurevich, J. Stürmer, R. Apodaca, L. Vanzi, S. Rukdee, J. S. Lawrence, D. W. Coutts, N. Cvetojevic, S. Mahadevan, G. K. Stefánsson, S. P. Halverson, and O. Guyon "Adaptive optics fed single-mode spectrograph for high-precision Doppler measurements in the near-infrared", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991274 (22 July 2016); https://doi.org/10.1117/12.2234407

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