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Optical Engineering

KTiOPO4 double barrier optical waveguides produced by Rb+-K+ ion exchange and subsequent He+-ion irradiation
Author(s): Xiao-Jun Cui; Liang-Ling Wang; Hai-Kun Zhang; Tao Chen
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Paper Abstract

We report on the fabrication and characterization of KTiOPO4 optical waveguides formed by Rb+-K+ ion exchange in high-purity RbNO3 melt at 340°C for 90 min and subsequent He+-ion irradiation at energy of 500 keV and fluence of 3×1016  ions/cm2. The irradiation of KTiOPO4 crystals with He+ ions was simulated using the stopping range of ions in matter (SRIM’2006) software. The dark mode spectra of the samples were measured with the prism coupling method. The reconstructed refractive index profiles of the planar waveguide show a barrier in the middle of the guiding region, and a refractive index enhancement region on each side of the barrier, indicating the formation of a double waveguide.

Paper Details

Date Published: 11 March 2016
PDF: 5 pages
Opt. Eng. 55(3) 036107 doi: 10.1117/1.OE.55.3.036107
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Xiao-Jun Cui, Univ. of Jinan (China)
Liang-Ling Wang, Univ. of Jinan (China)
Hai-Kun Zhang, Univ. of Jinan (China)
Tao Chen, Univ. of Jinan (China)

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