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

Abstract

We report on the dispersion of the third-order nonlinear susceptibility (${\chi }^{\left(3\right)}$ or “Chi 3”) in planar ${\mathrm{Ta}}_2{\mathrm{O}}_5$ waveguides in the telecommunications spectral window. We utilize the observation of third-harmonic generation under ultrashort pulsed excitation as a reference-free characterization method of ${\chi }^{\left(3\right)}$ and obtain a large nonlinear coefficient, $2\times {10}^{-13}\mathrm{esu}$, at $1550\mathrm{nm}$. Our observation of efficient third-harmonic generation in ${\mathrm{Ta}}_2{\mathrm{O}}_5$ waveguides in the telecoms window reveals the potential of this material system in high-speed integrated nonlinear optical switches.

© 2009 Optical Society of America

Broadband stimulated four-wave parametric conversion on a tantalum pentoxide photonic chip

Ruiqi Y. Chen, Martin D. B. Charlton, and Pavlos G. Lagoudakis
Opt. Express 19(27) 26343-26352 (2011)

Waveguide lasers in ytterbium-doped tantalum pentoxide on silicon

A. Aghajani, G. S. Murugan, N. P. Sessions, V. Apostolopoulos, and J. S. Wilkinson
Opt. Lett. 40(11) 2549-2552 (2015)

Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu₂O crystal

Shahin E. Mani, Joon I. Jang, and John B. Ketterson
Opt. Lett. 34(18) 2817-2819 (2009)

High repetition rate flat coherent optical frequency comb generation based on the normal dispersion tantalum pentoxide optical waveguide

Chunjiang Wu, Xuelin Ding, Zhifang Wu, and Suchun Feng
OSA Continuum 2(9) 2704-2717 (2019)

Spectroscopy of ytterbium-doped tantalum pentoxide rib waveguides on silicon

A. Aghajani, G. S. Murugan, N. P. Sessions, S. J. Pearce, V. Apostolopoulos, and J. S. Wilkinson
Opt. Mater. Express 4(8) 1505-1514 (2014)