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Proceedings Paper

Real-time processor for stellar speckle interferometry using microchannel spatial light modulator
Author(s): Junji Ohtsubo; Takeshi Utakouji; Tamiki Takemori; Katsuyoshi Fujita; Syuzo Isobe
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Paper Abstract

To obtain the averaged Fourier power spectrum of a time-varying stellar speckle images from a binary star a portable real-time Fourier-transform processor is developed for stellar speckle interferometry, in which the Fourier transform of the image is done optically by using a microchannel spatial light modulator. Several double star images are analyzed on the telescope sites by the real-time processor. The cycle time of 2-10 Hz is achieved in this instrument depending upon incoming light level.

Paper Details

Date Published: 27 December 1990
PDF: 10 pages
Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); doi: 10.1117/12.23432
Show Author Affiliations
Junji Ohtsubo, Shizuoka Univ. (Japan)
Takeshi Utakouji, Shizuoka Univ. (Japan)
Tamiki Takemori, Hamamatsu Photonics K. K. (Japan)
Katsuyoshi Fujita, Hamamatsu Photonics K. K. (Japan)
Syuzo Isobe, National Astronomical Observatory (Japan)


Published in SPIE Proceedings Vol. 1347:
Optical Information Processing Systems and Architectures II
Bahram Javidi, Editor(s)

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