Optics Letters
Wideband and high-resolution coherent optical transients with a frequency-agile laser oscillator
Vincent Crozatier, Guillaume Gorju, J.-L. Le Gouët, Fabien Bretenaker, I. Lorgeré
Abstract
We report what is believed to be the first experimental demonstration of a wideband spectral coherent process driven by a frequency-agile laser in a rare-earth-ion-doped crystal. The very demanding chirp-transform algorithm is studied in detail and is applied to radio-frequency spectral analysis. A time-bandwidth product of 24,000 is demonstrated.