Persistent spectral hole burning in an organic material for temporal pattern recognition
نویسنده
چکیده
A broad-bandwidth persistent spectral hole-burning organic material is used as a fast optical processor that compares an input temporal-frequency profile with a recorded reference spectral shape. This patternrecognition procedure relies on a subpicosecond temporal cross-correlation process. The size of the phaseencoding spectral interval exceeds 1 THz. The storage material, the spectral encoder, and the interferometric detector are examined in detail for optimal pattern discrimination. Experimental temporal patternrecognition results are reported. © 1999 Optical Society of America [S0740-3224(99)02101-3] OCIS codes: 090.0090, 020.1670, 070.5010, 320.5390, 200.4740, 190.4380.
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Ultra-fast temporal pattern recognition through a persistent spectral hole-burning filter
Cross-correlation of complex, picosecond-range, temporal shapes is demonstrated experimentally with the help of a filter recorded in an organic spectral hole-burning material.
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