Pupil slicer design for the NASA-NSF extreme precision Doppler spectrograph concept WISDOM
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The WIYN Spectrograph for Doppler Monitoring (WISDOM) was a concept responding to NASA's solicitation for an extreme precision radial velocity instrument for the 3.5 meter WIYN telescope on Kitt Peak in Arizona. In order to meet the spectral resolution requirement of R = 110,000 while maintaining good throughput and a manageable beam diameter, the front end design of the instrument employed a pupil slicing technique wherein a collimated beam is sliced and fed to six separate fibers. This paper presents the optical and mechanical design of the pupil slicer subassembly, a unique method of dealing with thermally induced defocus error, and the methods and results of aligning a prototype.
Date issued
2016-07Department
MIT Kavli Institute for Astrophysics and Space ResearchJournal
Proceedings of SPIE--the Society of Photo-Optical Instrumentation Engineers
Publisher
SPIE
Citation
"Pupil slicer design for the NASA-NSF extreme precision Doppler spectrograph concept WISDOM", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99121X (July 22, 2016)
Version: Final published version
ISSN
0277-786X