Visible and near-infrared optical properties of Nd:CLNGG crystal waveguides formed by proton implantation |
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Affiliation: | 1.School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;2.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences(CAS), Xi'an 710119, China |
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Abstract: | A Nd:CLNGG waveguide structure operated at wavelengths of both 632.8 nm and 1539 nm was demonstrated for the first time to our knowledge, which was produced by the 480-keV H+ ion implantation with a dose of 1.0×1017 protons/cm2. Its propagating modes at 632.8 nm and 1539 nm were measured by the well-known prism coupling technique. The refractive index profile at either 632.8-nm wavelength or 1539-nm wavelength was optical barrier type in the proton-implanted Nd:CLNGG crystal optical waveguide, which was calculated by using the reflectivity calculation method. The near-field light intensity distributions were also simulated by the finite-difference beam propagation method in the visible and near-infrared bands. |
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Keywords: | ion implantation Nd:CLNGG crystal waveguide |
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