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All-optical sampling and spectrographic pulse measurement using cross-absorption modulation in multiple-quantum-well-devices

Reid, D. and Maguire, Peter and Barry, L.P. and Le, Q.T. and Lobo, S. and Gay, M. and Bramerie, L. and Joindot, M. and Simon, J.-C. and Massoubre, David and Oudar, J.L. and Aubin, G. (2008) All-optical sampling and spectrographic pulse measurement using cross-absorption modulation in multiple-quantum-well-devices. Journal of Optical Society of America B, 25 (6). A133-A139. ISSN 0740-3224

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Abstract

The application of cross absorption modulation for optical sampling and phase sensitive pulse measurement is presented. Both a commercial 40 GHz electroabsorption modulator and a vertical microcavity saturable absorber are used to sample a 2 ps pulse train at 40 GHz. The modulator was then used to make cross-absorption modulation based frequency-resolved optical gating (FROG) measurements. The results were verified by comparison with a commercial optical sampling oscilloscope and the more standard second harmonic generation FROG technique.