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Proceedings Paper

The FRD and transmission of the 270-m GRACES optical fiber link and a high numerical aperture fiber for astronomy
Author(s): John Pazder; Paul Fournier; Rafal Pawluczyk; Maaike van Kooten
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Paper Abstract

We report results of the extensive development work done on the 270-m optical fiber link for the GRACES project and a preliminary investigations into a high numerical aperture fiber for astronomy. The Gemini Remote Access CFHT ESPaDOnS Spectrograph (GRACES) is an instrumentation experiment to link ESPaDOnS, a bench-mounted highresolution optical spectrograph at CFHT, to the Gemini-North telescope with an optical fiber link. A 270-m fiber link with less than 14% Focal Ratio Degradation (FRD) has been developed jointly by HIA and FiberTech Optica for the experiment. A preliminary study has been conducted by HIA into a high numerical aperture fiber (0.26 numerical aperture) with the intended application of wide field optical spectrographs fiber fed from the telescope prime focus. The Laboratory test results of FRD, transmission, and stability for the GRACES fiber link and preliminary FRD measurements of the high numerical aperture fiber tests are reported.

Paper Details

Date Published: 28 July 2014
PDF: 10 pages
Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915124 (28 July 2014); doi: 10.1117/12.2057327
Show Author Affiliations
John Pazder, NRC - Herzburg Institute of Astrophysics (Canada)
Paul Fournier, Fibertech Optica Inc. (Canada)
Rafal Pawluczyk, Fibertech Optica Inc. (Canada)
Maaike van Kooten, NRC - Herzburg Institute of Astrophysics (Canada)


Published in SPIE Proceedings Vol. 9151:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Ramón Navarro; Colin R. Cunningham; Allison A. Barto, Editor(s)

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