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The “rainbow” spectrum analyzer is a 20 GHz instantaneous bandwidth RF spectral analyzer with 10 μs-resolution. We derive a model in order to optimize this analyzer and estimate the dynamic range. An experimental validation is presented. The dynamic range is estimated to be larger than 75 dB.
We report on the experimental demonstration of a multi-gigahertz bandwidth RF spectrum analyzer based on spectral hole burning in a 3 K-cooled rare-earth ion-doped crystal. We implemented the so-called “rainbow” architecture in which the optically carried spectral components of the incoming signal are angularly separated by the crystal, and are then acquired with a pixelated photo-detector. With this...
We present a 20GHz instantaneous bandwidth spectrum analyzer, using spectral hole burning in Tm:YAG crystal cooled at 4K. The measured magnitude transfer function of the channels is presented and a comparison with electronics is outlined.
We report on the experimental demonstration of a multi-gigahertz bandwidth RF spectrum analyzer exhibiting a resolution below 20 MHz, based on spectral hole burning in a rare-earth ion-doped crystal. To be compatible with demanding real-time spectrum monitoring applications, our demonstrator is designed to reach a high time resolution. For this purpose, we implemented the so-called “rainbow” architecture...
We report high efficient storage at telecom wavelength using the recently proposed ROSE protocol. The bandwidth is analyzed to increase the multiplexing capacity.
We propose a purely analog way to time reverse optically-carried radiofrequency signals. Taking advantage of the time-space duality, we implement an approximate temporal imaging device that combines a time-lens and a single dispersive line. For military applications, this dispersive element must offer a group delay dispersion high enough to time-reverse μs-long signals. We propose to use spectral...
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