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Planar waveguides in calcium barium niobate fabricated by MeV He ion implantation

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Abstract

A planar optical waveguide was formed in calcium barium niobate (CBN) crystal by 2.8-MeV He-ion implantation with a dose of 1.0×1016 ions/cm2 at room temperature. The prism-coupling method was used to take dark mode measurements at both 633 nm and 1539 nm. The refractive-index profile (no and ne) of the He-implanted CBN waveguide was analyzed with the reflectivity calculation method. The results show that the MeV He implantation results in a decrease in refractive index in barriers for both no (4.1%) and ne (3.1%), but for ne there is an increase in the waveguide region. The intensity profile of the guide mode and waveguide loss were obtained by end-fire coupling.

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Authors and Affiliations

  1. Department of Physics and Mathematics, Shandong Institute of Architecture and Engineering, Jinan, 250014, P.R. China

    G. Fu

  2. Department of Physics, Shandong University, Jinan, 250100, P.R. China

    K.-M. Wang & X.-L. Wang

  3. State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China

    H.-J. Zhang, X.-G. Xu & H.-L. Song

  4. Department of Technical Physics and the Key Laboratory of Heavy Ion Physics, Ministry of Education China, Peking University, Beijing, 100871, P.R. China

    H.-J. Ma

Authors
  1. G. Fu
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  2. K.-M. Wang
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  3. X.-L. Wang
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  4. H.-J. Zhang
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  5. X.-G. Xu
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  6. H.-L. Song
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  7. H.-J. Ma
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Correspondence to G. Fu.

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PACS

42.79.Gn; 61.80.Jh

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Fu, G., Wang, KM., Wang, XL. et al. Planar waveguides in calcium barium niobate fabricated by MeV He ion implantation. Appl. Phys. B 87, 289–292 (2007). https://doi.org/10.1007/s00340-007-2606-x

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  • DOI: https://doi.org/10.1007/s00340-007-2606-x

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