Determination of nonlinear refractive index in a Ta2O 5 rib waveguide using self-phase modulation

Chao Yi Tai, James S. Wilkinson, Nicolas M.B. Perney, M. Caterina Netti, F. Cattaneo, Chris E. Finlayson, Jeremy J. Baumberg

研究成果: 雜誌貢獻期刊論文同行評審

84 引文 斯高帕斯(Scopus)

摘要

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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頁(從 - 到)5110-5116
頁數7
期刊Optics Express
12
發行號21
DOIs
出版狀態已出版 - 10月 2004

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