22 October 2004 Photorefractive-based adaptive optical windows
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Optical windows have been widely used in optical spectrographic processing system. In this paper, various window profiles, such as rectangular, triangular, Hamming, Hanning, and Blackman etc., have been investigated in detail, regarding their effect on the generated spectrograms, such as joint time-frequency resolution ΔtΔw, the sidelobe amplitude attenuation etc.. All of these windows can be synthesized in a photorefractive crystal by angular multiplexing holographic technique, which renders the system more adaptive. Experimental results are provided.
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Yuexin Liu, Yuexin Liu, Yi Yang, Yi Yang, Bo Wang, Bo Wang, John Youwei Fu, John Youwei Fu, Shizhuo Yin, Shizhuo Yin, Ruyan Guo, Ruyan Guo, Francis T.S. Yu, Francis T.S. Yu, } "Photorefractive-based adaptive optical windows", Proc. SPIE 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X, (22 October 2004); doi: 10.1117/12.561226; https://doi.org/10.1117/12.561226

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