Autocorrelation measurement of 6-fs pulses based on the two-photon-induced photocurrent in a GaAsP photodiode

1 September 1997

journal article
Published by Optica Publishing Group in Optics Letters

Vol. 22 (17) , 1344-1346
https://doi.org/10.1364/ol.22.001344

Abstract

We experimentally characterize the two-photon response of a GaAsP photodiode by use of a femtosecond Ti:sapphire laser tuned below the diode bandgap. The photodiode is shown to be highly suitable for real-time second-order autocorrelation measurements of pulses as short as 6 fs in duration and with energies as small as a few picojoules.

Keywords

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