Abstract

We report two-photon photocurrent in a GaAs/AlGaAs multiple quantum well laser at 1.55μm. Using 1ps pulses, a purely quadratic photocurrent is observed. We measure the device efficiency, sensitivity, as well as the two-photon absorption coefficient. The results show that the device has potential for signal processing, autocorrelation and possibly two-photon source applications at sub-Watt power levels

© 2009 Optical Society of America

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History
Original Manuscript: January 15, 2009
Manuscript Accepted: March 16, 2009
Revised Manuscript: March 13, 2009
Published: March 19, 2009

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Author Affiliations

A. J. Spring Thorpe

Canadian Photonics Fabrication Centre, National Research Council of Canada

D. N. Christodoulides

CREOL, University of Central Florida

D. J. Moss

CUDOS, University of Sydney

L. Razzari, L. Halloran, R. Morandotti

INRS-EMT

D. Duchesne

INRS-Energie Mat & Tele Site Varennes

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