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  • Received: Apr. 19, 2004

    Accepted: --

    Posted: Jun. 6, 2006

    Published Online: Jun. 6, 2006

    The Author Email: Junming An (


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    Junming An, Jian Li, Dingshan Gao, Junlei Xia, Jianguang Li, Hongjie Wang, Xiongwei Hu. Design and numerical analysis for low birefringence silica on silicon waveguides[J]. Chinese Optics Letters, 2004, 2(8): 08456

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Chinese Optics Letters, Vol. 2, Issue 8, 08456 (2004)

Design and numerical analysis for low birefringence silica on silicon waveguides

Junming An1,2,*, Jian Li1, Dingshan Gao1, Junlei Xia1, Jianguang Li1, Hongjie Wang1, and Xiongwei Hu1

Author Affiliations

  • 1R&
  • 2Center of Optoelectonics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083


A new fabrication technology for three-dimensionally buried silica on silicon optical waveguide based on deep etching and thermal oxidation is presented. Using this method, a silicon layer is left at the side of waveguide. The stress distribution and effective refractive index are calculated by using finite element method and finite different beam propagation method, respectively. The results indicate that the stress of silica on silicon optical waveguide fabricated by this method can be matched in parallel and vertical directions and stress birefringence can be effectively reduced due to the side-silicon layer.


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