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


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).

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Description/Abstract

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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1364/OPEX.12.005110
ISSNs: 1094-4087 (print)
Related URLs:
Keywords: nonlinear optics, materials, optical materials
Subjects:

ePrint ID: 12467
Date :
Date Event
2004Published
Date Deposited: 17 Nov 2004
Last Modified: 16 Apr 2017 23:52
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/12467

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