Reference free Chi 3 dispersion measurements in planar tantalum pentoxide waveguides
نویسندگان
چکیده
We utilize analysis of third harmonic generation under femtosecond pulsed excitation as a reference free measurement method for third order nonlinear susceptibility ( ) 3 ( χ or “Chi 3”) of planar waveguides. We investigate ) 3 ( χ dispersion in planar 5 2O Ta waveguides at wavelengths either side of the telecoms window, obtaining a nonlinear coefficient of 13 10 2 − × esu, at 1550 nm. Our study indicates that ) 3 ( χ increases within the measured wavelength range due to a threephoton resonance of 5 2O Ta electrons, revealing the potential of this material system in high speed integrated nonlinear optical switches for the telecommunications spectral window.
منابع مشابه
Chi 3 dispersion in planar tantalum pentoxide waveguides in the telecommunications window.
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