Second-harmonic imaging of poled silica waveguides

Jesper Arentoft, Kjeld Pedersen, Sergey I. Bozhevolnyi, Martin Kristensen, Ping Yu, Christian Bergenstof Nielsen

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Electric-field poled silica-based waveguides are characterized by measurements of second-harmonic generation (SHG) and of the linear electro-optic effect (LEO). A SHG scanning technique allowing for high-resolution imaging of poled devices is demonstrated. Scans along the direction of the poling field show that the second-order optical nonlinearity is located near the interface between differently doped glass layers. Both SHG and LEO measurements indicate that the ratio between the main elements of the second-order nonlinear optical susceptibility tensor, chi(33)((2)) and chi(31)((2)), is significantly smaller than three. (C) 2000 American Institute of Physics.
Original languageEnglish
JournalApplied Physics Letters
Issue number1
Pages (from-to)25-27
Publication statusPublished - 2000

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Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.




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