Chi 3 dispersion in planar tantalum pentoxide waveguides in the telecommunications window

Ruiqi Y. Chen, Martin D.B. Charlton, Pavlos G. Lagoudakis

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We report on the dispersion of the third-order nonlinear susceptibility (Χ(3) or "Chi 3") in planar Ta2O 5waveguides in the telecommunications spectral window. We utilize the observation of third-harmonic generation under ultrashort pulsed excitation as a reference-free characterization method of Χ(3) and obtain a large nonlinear coefficient, 2 × 10-13 esu,at 1550 nm. Our observation of efficient third-harmonic generation in Ta2O 5 waveguides in the telecoms window reveals the potential of this material system in high-speed integrated nonlinear optical switches.

Original languageEnglish
Pages (from-to)1135-1137
Number of pages3
JournalOptics Letters
Volume34
Issue number7
DOIs
Publication statusPublished - 1 Apr 2009
Externally publishedYes

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