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Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides

Chen, Ruiqi, Charlton, Martin and Lagoudakis, Pavlos (2009) Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides Proceedings of SPIE - The International Society for Optical Engineering, 7420

Record type: Article


We utilize analysis of third harmonic generation under femtosecond pulsed excitation as a reference free measurement method for third order nonlinear susceptibility (? (3) or “Chi 3”) of planar waveguides. We investigate ? (3) dispersion in planar Ta2O5 waveguides at wavelengths either side of the telecoms window, obtaining a nonlinear coefficient of 2 ×10?13 esu, at 1550 nm. Our study indicates that ? (3) increases within the measured wavelength range due to a threephoton resonance of Ta2O5 electrons, revealing the potential of this material system in high speed integrated nonlinear optical switches for the telecommunications spectral window.

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Published date: 2 August 2009
Organisations: Nanoelectronics and Nanotechnology


Local EPrints ID: 270977
PURE UUID: 4670de25-13d1-4610-b154-c898e15baeb2

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Date deposited: 04 May 2010 11:01
Last modified: 18 Jul 2017 06:48

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Author: Ruiqi Chen
Author: Martin Charlton
Author: Pavlos Lagoudakis

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