Real-time processor for stellar speckle interferometry using microchannel spatial light modulator

Junji Ohtsubo; Takeshi Utakouji; Tamiki Takemori; Katsuyoshi Fujita; Syuzo Isobe

doi:10.1117/12.23432

27 December 1990 Real-time processor for stellar speckle interferometry using microchannel spatial light modulator

Junji Ohtsubo, Takeshi Utakouji, Tamiki Takemori, Katsuyoshi Fujita, Syuzo Isobe

Proceedings Volume 1347, Optical Information Processing Systems and Architectures II; (1990) https://doi.org/10.1117/12.23432
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

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.

Citation Download Citation

Junji Ohtsubo, Takeshi Utakouji, Tamiki Takemori, Katsuyoshi Fujita, and Syuzo Isobe "Real-time processor for stellar speckle interferometry using microchannel spatial light modulator", Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); https://doi.org/10.1117/12.23432

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