22 December 2015 Design of a multiplexing grating for color holographic waveguide
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Volume holographic gratings have been used in waveguide displays to implement full-color three-dimensional imaging. Among these, multiplexing gratings are advanced in low energy losses and simple manufacture technologies when used as couplers of color hologram waveguides. A multiplexing holographic grating is designed to realize a uniform red, green, and blue diffraction efficiency and eliminate stray light to the largest extent. Results indicate that the red, green, and blue light incident normal to the grating could be successfully in-coupled into the planar waveguide for total internal reflection with high peak diffraction efficiency, similar energy output, and little stray light. We also analyze the effect of the technical tolerance, including gating thickness, index modulation, grating period, slanted angle, and incident angle. This analysis could help to minimize the optical system and improve the color image quality of waveguide displays.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jingjing Guo, Jingjing Guo, Yan Tu, Yan Tu, Lanlan Yang, Lanlan Yang, Lili Wang, Lili Wang, Baoping Wang, Baoping Wang, } "Design of a multiplexing grating for color holographic waveguide," Optical Engineering 54(12), 125105 (22 December 2015). https://doi.org/10.1117/1.OE.54.12.125105 . Submission:

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