Triple product acousto-optical processor for the astrophysical applications

Alexandre S. Shcherbakov; Ana Virginia Hanessian de la Garza; Vahram Chavushyan; Joaquin Campos Acosta

doi:10.1117/12.2001477

24 October 2012 Triple product acousto-optical processor for the astrophysical applications

Alexandre S. Shcherbakov, Ana Virginia Hanessian de la Garza, Vahram Chavushyan, Joaquin Campos Acosta

Proceedings Volume 8412, Photonics North 2012; 84121F (2012) https://doi.org/10.1117/12.2001477
Event: Photonics North 2012, 2012, Montréal, Canada

Abstract

This processor is oriented to studies in the extra-galactic astronomy as well as to searching the extra-solar planets, so that algorithm of the space-and-time integrating is desirable for a wideband spectrum analysis with an improved resolution. It includes 1D-acousto-optic cells as the input devices for a 2D-optical data processing. The importance of this algorithm is based on exploiting the chirp Z − transform technique providing a 2D-Fourier transform of the input signals. The system produces the folded spectrum, accumulating advantages of both space and time integrating. Its frequency bandwidth is practically equal to the bandwidth of transducers inherent in acousto-optical cells. Then, similar processor is able to provide really high frequency resolution, which is practically equal to the reciprocal of the CCD-matrix photo-detector integration time. Here, the current state of designing the triple product acousto-optical processor in frames of the astrophysical instrumentation is presented.

Citation Download Citation

Alexandre S. Shcherbakov, Ana Virginia Hanessian de la Garza, Vahram Chavushyan, and Joaquin Campos Acosta "Triple product acousto-optical processor for the astrophysical applications", Proc. SPIE 8412, Photonics North 2012, 84121F (24 October 2012); https://doi.org/10.1117/12.2001477

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