Main > Chinese Optics Letters >  Volume 13 >  Issue 9 >  Page 091301 > Article
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  • Received: Apr. 9, 2015

    Accepted: Jun. 30, 2015

    Posted: Jan. 23, 2019

    Published Online: Sep. 14, 2018

    The Author Email: Junbo Yang (yangjunbo008@sohu.com)

    DOI: 10.3788/COL201513.091301

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    Jingjing Zhang, Junbo Yang, Huanyu Lu, Wenjun Wu, Jie Huang, Shengli Chang. Polarization-independent grating coupler based on silicon-on-insulator[J]. Chinese Optics Letters, 2015, 13(9): 091301

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Polarization-insensitive grating coupler based on SOI.

Fig. 1. Polarization-insensitive grating coupler based on SOI.

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Effective refractive index as a function of waveguide thickness.

Fig. 2. Effective refractive index as a function of waveguide thickness.

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Coupling efficiency as a function of filling factor.

Fig. 3. Coupling efficiency as a function of filling factor.

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Coupling efficiency as a function of period.

Fig. 4. Coupling efficiency as a function of period.

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Coupling efficiency as a function of etching height.

Fig. 5. Coupling efficiency as a function of etching height.

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Coupling efficiency as a function of wavelength and angle.

Fig. 6. Coupling efficiency as a function of wavelength and angle.

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Compare with coupling efficiency and wavelength for TE and TM mode.

Fig. 7. Compare with coupling efficiency and wavelength for TE and TM mode.

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Optical field distributions at the wavelength of 1.56 μm for (a) TE mode and (b) TM mode.

Fig. 8. Optical field distributions at the wavelength of 1.56 μm for (a) TE mode and (b) TM mode.

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