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Determination of nonlinear refractive index in a Ta2O5 rib waveguide using self-phase modulation

Record type: Article

Self-phase modulation has been observed for ultrashort pulses of wavelength 800nm propagating through a 1 cm-long Ta2O5 rib waveguide. The associated nonlinear refractive index n2 was estimated to be 7.23×10-19 m2/W, which is higher than silica glass by more than one order of magnitude. Femtosecond time of flight measurements based on a Kerr shutter configuration show that the group velocity dispersion is small at a wavelength of 800 nm, confirming that dispersion may be neglected in the estimation of n2 so that a simplified theory can be used with good accuracy.

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Citation

Tai, Chao-Yi, Wilkinson, James S., Perney, Nicholas M.B., Netti, M.C., Cattaneo, F., Finlayson, Chris and Baumberg, Jeremy (2004) Determination of nonlinear refractive index in a Ta2O5 rib waveguide using self-phase modulation Optics Express, 12, (21), pp. 5110-5116. (doi:10.1364/OPEX.12.005110).

More information

Published date: 2004
Keywords: nonlinear optics, materials, optical materials

Identifiers

Local EPrints ID: 12467
URI: http://eprints.soton.ac.uk/id/eprint/12467
ISSN: 1094-4087
PURE UUID: 18bb8b0d-613f-47fe-93bb-c2d1f208572d
ORCID for James S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 17 Nov 2004
Last modified: 17 Jul 2017 17:03

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Contributors

Author: Chao-Yi Tai
Author: Nicholas M.B. Perney
Author: M.C. Netti
Author: F. Cattaneo
Author: Chris Finlayson
Author: Jeremy Baumberg

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