Acousto-Optical Spectrometers for the Cologne 3m-Radiotelescope

W. Zensen; A. Piciorgros; R. Schieder; G. Winnewisser

doi:10.1117/12.952334

21 April 1986 Acousto-Optical Spectrometers for the Cologne 3m-Radiotelescope

W. Zensen, A. Piciorgros, R. Schieder, G. Winnewisser

Proceedings Volume 0598, Instrumentation for Submillimeter Spectroscopy; (1986) https://doi.org/10.1117/12.952334
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

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.

Citation Download Citation

W. Zensen, A. Piciorgros, R. Schieder, and G. Winnewisser "Acousto-Optical Spectrometers for the Cologne 3m-Radiotelescope", Proc. SPIE 0598, Instrumentation for Submillimeter Spectroscopy, (21 April 1986); https://doi.org/10.1117/12.952334

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