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High-resolution radio frequency spectral analysis with photon echo chirp transform in an Er:YSO crystal

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5 Author(s)
Crozatier, V. ; Centre Nat. de la Recherche Scientifique, Lab. Aime Cotton, Orsay, France ; Lavielle, V. ; Bretenaker, F. ; Le Gouet, J.-L.
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We demonstrate implementation of the chirp transform algorithm with photon echoes in an Er3+:YSO crystal at 1536 nm for application to spectral analysis of RF signals. The principle and features of the technique are presented using a simple picture in the time-frequency plane. Experimental results with low-bandwidth RF signals demonstrate 40-kHz spectral resolution and a time-bandwidth product of 500. Extension to broad-band RF signals is discussed.

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Quantum Electronics, IEEE Journal of  (Volume:40 ,  Issue: 10 )