Recording of the Multiplexed Bragg Diffraction Gratings for Waveguides Using Phase Mask

Maria Shishova, Alexander Zherdev, Dmitrii Lushnikov, Sergey Odinokov
2020 Photonics  
The paper describes a stable method for multiplexed recording of the Bragg diffraction gratings for waveguides using a phase mask. Diffraction waveguides in this experiment were made of photo-thermo-refractive glass. Two types of the phase mask are considered: surface and volume. Their comparison is based on diffraction characteristics of manufactured single and multiplexed Bragg gratings. The experimental results showed the advantage of surface phase mask application. To confirm the efficiency
more » ... of the proposed method, diffraction waveguides was successfully fabricated and integrated in see-through near-eye display.
doi:10.3390/photonics7040097 fatcat:eeho25tbmnbqxkdvindgfez2li