Vol. 39, Issue 1, pp. 161-167

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  2. Optica Applicata Vol. 39, Issue 1, pp. 161-167 (2009)
Vol. 39 Issue 1 pp. 161-167

Investigations of photoresponse signals of LT-GaAs photodetector

Malgorzata Bialous, Krzysztof Switkowski, Anna Kozanecka-Szmigiel, Michal Wierzbicki, Bronislaw Pura

Keywords

electro-optic sampling, ultrafast photodetectors, low-temperature-grown GaAs (LT-GaAs)

Abstract

In this paper, we demonstrate our electro-optic sampling system constructed for characterization of high-speed photodetectors based on low-temperature-grown GaAs (LT-GaAs). Changes in the shape of electrical signals for different optical powers, voltage biases and positions of a probe beam have been shown. The obtained photoresponse of the investigated photodetector exhibits 0.9 ps (full width at half maximum).

Vol. 39
Issue 1
pp. 161-167

0.25 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology