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Proceedings Paper

Acousto-Optical Spectrometers for the Cologne 3m-Radiotelescope
Author(s): W. Zensen; A. Piciorgros; R. Schieder; G. Winnewisser
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Paper Abstract

Three compact acousto-optical spectrometers with a total bandwidth of 64, 250 and 500 MHz were developed. The frequency resolution (and number of detection channels) are 32 kHz (2048), 250 kHz (1510) and 500 kHz (1350) respectively. The two broadband instruments are working for the first time with a 780 nm laser diode. All instruments are easy to align and transportable; the design is modular, the electronics is standardized. The Allan-Plot has been developed and used in combination with other test methods to reliably check the performance characteristics of the AOS, such as mechanical, frequency and temperature stability. The total observational integration time used were 35000s on source without any noticeable degradation in the integration performance of the spectrometers.

Paper Details

Date Published: 21 April 1986
PDF: 8 pages
Proc. SPIE 0598, Instrumentation for Submillimeter Spectroscopy, (21 April 1986); doi: 10.1117/12.952334
Show Author Affiliations
W. Zensen, Universitaet zu Koeln (Federal Republic of Germany)
A. Piciorgros, Universitaet zu Koeln (Federal Republic of Germany)
R. Schieder, Universitaet zu Koeln (Federal Republic of Germany)
G. Winnewisser, Universitaet zu Koeln (Federal Republic of Germany)


Published in SPIE Proceedings Vol. 0598:
Instrumentation for Submillimeter Spectroscopy
Erik L. Kollberg, Editor(s)

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