Optical bit-pattern recognition by use of dynamic gratings in erbium-doped fiber

We present a novel optical bit-pattern-recognition technique that uses erbium-doped fiber at room temperature. Counterpropagating beams write a patterned gain-depletion grating in pumped erbium-doped fiber. This grating, recorded in the erbium gain medium, can be used for correlation with other opti...

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Veröffentlicht in:	Optics letters 1997-12, Vol.22 (23), p.1757-1759
Hauptverfasser:	Wey, J S, Butler, D L, Rush, N W, Burdge, G L, Goldhar, J
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Sprache:	eng
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creator	Wey, J S Butler, D L Rush, N W Burdge, G L Goldhar, J
description	We present a novel optical bit-pattern-recognition technique that uses erbium-doped fiber at room temperature. Counterpropagating beams write a patterned gain-depletion grating in pumped erbium-doped fiber. This grating, recorded in the erbium gain medium, can be used for correlation with other optical bit patterns. We have demonstrated correlation of arbitrary return-to-zero bit patterns of as many as 8 bits at 1 Gbit/s . Theory suggests that scaling to higher bit rates is feasible.
doi_str_mv	10.1364/ol.22.001757
format	Article
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title	Optical bit-pattern recognition by use of dynamic gratings in erbium-doped fiber
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