Title

The nonlinear optical properties of AlGaAs at the half band gap

Authors

Authors

J. S. Aitchison; D. C. Hutchings; J. U. Kang; G. I. Stegeman;A. Villeneuve

Comments

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Abbreviated Journal Title

IEEE J. Quantum Electron.

Keywords

nonlinear optics; optical propagation in anisotropic media; optical; propagation in nonlinear media; 2-PHOTON ABSORPTION; ZINCBLENDE SEMICONDUCTORS; 3-PHOTON ABSORPTION; WAVE-GUIDES; REFRACTION; ANISOTROPY; DISPERSION; LIMITATION; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

We report experimental values for the nonlinear optical coefficients of AlGaAs, in the half-band-gap spectral region. The dispersion of the nonlinear refractive-index coefficient, nl, is measured for both TE- and TM-polarized light. We observe n(2)(TE) > n(2)(TM) and a ratio of cross-phase modulation to self-phase modulation (TE) of similar to 0.95, as predicted from bandstructure calculations. The spectral dependence of the two- and three-photon absorption coefficients are also measured, Finally, the implications for all-optical switching and spatial soliton propagation are discussed.

Journal Title

Ieee Journal of Quantum Electronics

Volume

33

Issue/Number

3

Publication Date

1-1-1997

Document Type

Article

Language

English

First Page

341

Last Page

348

WOS Identifier

WOS:A1997WW66200003

ISSN

0018-9197

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