Multichannel acousto-optic spectrometer

Dennis R. Pape; James A. Carter III

doi:10.1117/12.166051

21 January 1994 Multichannel acousto-optic spectrometer

Dennis R. Pape, James A. Carter III

Proceedings Volume 2051, International Conference on Optical Information Processing; (1994) https://doi.org/10.1117/12.166051
Event: Optical Information Processing: International Conference, 1993, St. Petersburg, Russian Federation

Abstract

Radiometer spectrometers are used in millimeter-wave radio astronomy for the spectral measurement of molecular rotational transitions. The spectrum of interest spans 10s of GHz and the measurement time is large in order to obtain useful signal-to-noise ratio. We describe here the design and performance of a multichannel acousto-optic spectrometer for radio astronomy spectroscopy applications. This instrument has 4 channels and can process signals from 4 separate sources simultaneously. The bandwidth of each channel is 1 GHz and the frequency resolution is 1 MHz, providing simultaneous processing over 4,000 1 MHz channels.

Citation Download Citation

Dennis R. Pape and James A. Carter III "Multichannel acousto-optic spectrometer", Proc. SPIE 2051, International Conference on Optical Information Processing, (21 January 1994); https://doi.org/10.1117/12.166051

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