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Proceedings Paper

Acousto-optical spectrometers' frequency performance stability
Author(s): Sergei I. Ivanov; Aleksandr P. Lavrov; Sergey A. Molodyakov; Igor I. Saenko
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Paper Abstract

Performance characteristics of the acoutsto-optical spectrometers for some radioastronomical applications are discussed. The main attention is given to the long-term stability of the acousto-optical spectrometer's frequency characteristics. It is shown that a problem of the frequency scale thermal instabilities can be overcome by using the suitable correction, based on the proposed model of the frequency scale drifts. For the acousto-optical spectrometers under consideration a simple method of the frequency scale drifts correction by using the data from measuring of a single reference signal's frequency was developed and applied for correction of molecular lines observations data. More careful procedure for more exigent applications, such as pulsar timing, is considered.

Paper Details

Date Published: 19 February 2004
PDF: 5 pages
Proc. SPIE 5381, Lasers for Measurements and Information Transfer 2003, (19 February 2004); doi: 10.1117/12.547757
Show Author Affiliations
Sergei I. Ivanov, St. Petersburg State Polytechnical Univ. (Russia)
Aleksandr P. Lavrov, St. Petersburg State Polytechnical Univ. (Russia)
Sergey A. Molodyakov, St. Petersburg State Polytechnical Univ. (Russia)
Igor I. Saenko, St. Petersburg State Polytechnical Univ. (Russia)


Published in SPIE Proceedings Vol. 5381:
Lasers for Measurements and Information Transfer 2003

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