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Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides

Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides
Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides
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.
1-12
SPIE
Chen, Ruiqi
2198083c-19b4-40dd-a28e-5929b80577c5
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Chen, Ruiqi
2198083c-19b4-40dd-a28e-5929b80577c5
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf

Chen, Ruiqi, Charlton, Martin and Lagoudakis, Pavlos (2009) Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III. vol. 7420, SPIE. pp. 1-12 . (doi:10.1117/12.825085).

Record type: Conference or Workshop Item (Paper)

Abstract

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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More information

Published date: 21 August 2009
Venue - Dates: Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, San Diego, United States, 2009-08-01
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 268076
URI: https://eprints.soton.ac.uk/id/eprint/268076
PURE UUID: 48159529-5810-46e9-998a-d4ad915cc126

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Date deposited: 20 Oct 2009 13:45
Last modified: 19 Jul 2019 16:40

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