Design of micro-cavity semiconductor devices for highly efficient optical switching and sampling applications
Barry, Liam P.ORCID: 0000-0001-8366-4790, Maguire, Paul J., Krug, T., Folliot, H., Lynch, Michael, Bradley, Ann LouiseORCID: 0000-0002-9399-8628, Donegan, John FrancisORCID: 0000-0002-5240-1434, Roberts, J.S. and Hill, G.
(2002)
Design of micro-cavity semiconductor devices for highly efficient optical switching and sampling applications.
In: LEOS-02 - The 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 10-14 Nov 2002.
ISBN 0-7803-7500-9
Two Photon Absorption (TPA) in semiconductors has recently been shown to be a serious candidate for optical autocorrelation of short pulses, and all-optical switching and sampling of high speed optical data signals in optical time division multiplexed (OTDM) systems. In this paper we present the design and fabrication of a TPA detector that has been specially designed for TPA with an input wavelength around 880 nm. The device that we have constructed is based on a microcavity structure, which greatly enhances the interaction length. We also demonstrate the use of this non-linear detector for carrying out autocorrelation measurements on picosecond optical pulses.