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Proceedings Article

Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides

[+] Author Affiliations
Ruiqi Y. Chen, Martin D. B. Charlton, Pavlos G. Lagoudakis

Univ. of Southampton (United Kingdom)

Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74200D (August 20, 2009); doi:10.1117/12.825085
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From Conference Volume 7420

  • Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III
  • Shizhuo Yin; Ruyan Guo
  • San Diego, CA | August 02, 2009

abstract

We utilize analysis of third harmonic generation under femtosecond pulsed excitation as a reference free measurement method for third order nonlinear susceptibility (χ(3) or "Chi 3") of planar waveguides. We investigate χ(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 χ(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.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Ruiqi Y. Chen ; Martin D. B. Charlton and Pavlos G. Lagoudakis
"Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides", Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74200D (August 20, 2009); doi:10.1117/12.825085; http://dx.doi.org/10.1117/12.825085


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