Fiber feed for the SDSS spectrograph

Russell E. Owen; Walter A. Siegmund; Siriluk Limmongkol; Charles L. Hull

doi:10.1117/12.176689

1 June 1994 Fiber feed for the SDSS spectrograph

Russell E. Owen, Walter A. Siegmund, Siriluk Limmongkol, Charles L. Hull

Proceedings Volume 2198, Instrumentation in Astronomy VIII; (1994) https://doi.org/10.1117/12.176689
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

A 640 fiber feed for a pair of moderate resolution spectrographs is being constructed for the sloan digital sky survey. The spectrograph slits, optical fibers and plug-plates are mounted together in removable cartridges. The cartridges protect the optical fibers and provide quick-change interfaces to the telescope and the spectrographs. Ten cartridges will be made to allow plugging to occur during the day. The fibers are constructed in harnesses of 20. These are mass-terminated in v- groove blocks at the spectrograph slit. At the input end the fibers are terminated in simple ferrules and manually plugged into aluminum plug-plates. The plug-plates are deformed to match the best focal surface of the telescope, and the holes are drilled to be parallel to the principal ray after bending. We describe a simple technique for drilling accurate holes.

Citation Download Citation

Russell E. Owen, Walter A. Siegmund, Siriluk Limmongkol, and Charles L. Hull "Fiber feed for the SDSS spectrograph", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176689

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