Compact waveguide laser sources emitting at wavelength around 1.0 μm are interesting in a multiple of application. In present work, we demonstrate a crystalline waveguide in Yb : Lu₃Al₅O₁₂ (Yb : LuAG) crystal irradiated by 4.5-MeV Si ions at fluences of 1.0·10¹⁵ cm^-2. A typical "barrier-confined" waveguide geometry is confirmed by performing the prism-coupling measurement at a wavelength of 632.8 nm with transverse electric (TE) polarization, and the refractive index profile is proposed based on the dark-mode plots. Under excitation at 930 nm, the peak emission at 1030 nm is generated with a bandwidth of 14.4 nm. The fluorescence decay actions are investigated on a Jobin Yvon spectrometer. The radiative constants and peak emission cross-section values are obtained. Keywords: Yb, Lu₃Al₅O₁₂, ion irradiation, optical waveguide, photoluminescence spectroscopy.

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Дата начала обработки статистических данных - 27 января 2016 г.