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Laser & Optoelectronics Progress, Volume. 59, Issue 20, 2011018(2022)

Polarization-Insensitive Grating Waveguide for Augmented Reality Display

Muhong Shen1, Lei Yang1、*, Zhanhua Huang1,2, Cheng Pan1,2, and Yuanjun Wu1
Author Affiliations
  • 1Key Laboratory of Optoelectronics Information Technology, Ministry of Education, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
  • 2Sichuan Innovation Research Institute of Tianjin University, Chengdu 610200, Sichuan, China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(15)
    System light path diagram. (a) Front view; (b) side view

    Fig. 1. System light path diagram. (a) Front view; (b) side view

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    Schematic diagrams of gratings. (a) In-coupling grating; (b) out-coupling grating

    Fig. 2. Schematic diagrams of gratings. (a) In-coupling grating; (b) out-coupling grating

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    Diagram of the relationship between the diffraction efficiency of the in-coupling grating and the thickness of Ag. (a) TE polarized light; (b) TM polarized light

    Fig. 3. Diagram of the relationship between the diffraction efficiency of the in-coupling grating and the thickness of Ag. (a) TE polarized light; (b) TM polarized light

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    Diagram of the relationship between the diffraction efficiency of the in-coupling grating and the thickness of TiO2. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 4. Diagram of the relationship between the diffraction efficiency of the in-coupling grating and the thickness of TiO2. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    Relationship between diffraction efficiency and field of view under different TiO2 thicknesses. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 5. Relationship between diffraction efficiency and field of view under different TiO2 thicknesses. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    Diffraction of light with different polarization states for in-coupling grating. (a) Relationship between average diffraction efficiency and TiO2 thickness; (b) relationship between variance and TiO2 thickness

    Fig. 6. Diffraction of light with different polarization states for in-coupling grating. (a) Relationship between average diffraction efficiency and TiO2 thickness; (b) relationship between variance and TiO2 thickness

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    Diagram of the relationship between the diffraction efficiency of the out-coupling grating and the thickness of TiO2. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 7. Diagram of the relationship between the diffraction efficiency of the out-coupling grating and the thickness of TiO2. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    Relationship between diffraction efficiency and field of view under different TiO2 thicknesses. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 8. Relationship between diffraction efficiency and field of view under different TiO2 thicknesses. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    Diffraction of light with different polarization states for out-coupling grating. (a) Relationship between average diffraction efficiency and TiO2 thickness; (b) relationship between variance and TiO2 thickness

    Fig. 9. Diffraction of light with different polarization states for out-coupling grating. (a) Relationship between average diffraction efficiency and TiO2 thickness; (b) relationship between variance and TiO2 thickness

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    System simulation. (a) Optical path structure; (b) display effect

    Fig. 10. System simulation. (a) Optical path structure; (b) display effect

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    Measuring device diagram

    Fig. 11. Measuring device diagram

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    Schematic diagram of measuring FOV

    Fig. 12. Schematic diagram of measuring FOV

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    DE of in-coupling grating. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 13. DE of in-coupling grating. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    DE of out-coupling grating. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

    Fig. 14. DE of out-coupling grating. (a) TE polarized light; (b) TM polarized light; (c) non-polarized light

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    Display effect photos. (a) Indoor; (b) outdoor; (c) wearing effect display

    Fig. 15. Display effect photos. (a) Indoor; (b) outdoor; (c) wearing effect display

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    Muhong Shen, Lei Yang, Zhanhua Huang, Cheng Pan, Yuanjun Wu. Polarization-Insensitive Grating Waveguide for Augmented Reality Display[J]. Laser & Optoelectronics Progress, 2022, 59(20): 2011018

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    Paper Information

    Category: Imaging Systems

    Received: Nov. 29, 2021

    Accepted: Dec. 29, 2021

    Published Online: Oct. 11, 2022

    The Author Email: Yang Lei (yanglei@tju.edu.cn)

    DOI:10.3788/LOP202259.2011018

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology