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UV second harmonic generation at 266 nm in He+ implanted β-BaB2O4 optical waveguides

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<mark>Journal publication date</mark>21/07/2008
<mark>Journal</mark>Optics Express
Issue number15
Volume16
Number of pages10
Pages (from-to)11660-11669
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We report on the second harmonic generation of deep UV light in β-BaB2O4 (BBO) waveguides pumped by a frequency-doubled continuous-wave Nd:YAG laser. An output power of 0.32 mW at 266 nm has been achieved for an internal pump power of 670 m W. Optical channel waveguides in BBO crystals were produced by He+ ion implantation, lithographic masking and ion etching. The linear and nonlinear optical properties and the power handling capability of these waveguides are presented.