Wideband versatile radio-frequency spectrum analyzer.
Operation of a wideband, versatile optical spectrum analyzer for radio-frequency (RF) signals is demonstrated. The device is based on spectral hole burning (SHB). The demonstration features 2.3-GHz instantaneous bandwidth, 500-kHz resolution, and a 32-dB dynamic range. A true RF signal, transferred to the optical carrier with the help of a Mach-Zehnder modulator, is analyzed with optical carrier suppression and zooming capabilities. This is to the authors' knowledge the largest instantaneous bandwidth ever demonstrated for a SHB-based processor in rare-earth-doped crystals.
Lavielle
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Laboratoire Aimé Cotton, Centre National de la Recherche Scientifique, Bâtiment 505, 91405 Orsay, France. vincent.lavielle@lac.u-psud.fr
Lorgeré
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Le Gouët
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Tonda
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Dolfi
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