Main > HPArticle > Real-time electroholography using a single spatial light modulator and a cluster of graphics-processing units connected by a gigabit Ethernet network
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  • Manuscript Accepted: Nov. 1, 2019

    Online Published: Nov. 2, 2019

Chinese Optics Letters, 2020, Vol. 18, Issue 2, pp.

Real-time electroholography using a single spatial light modulator and a cluster of graphics-processing units connected by a gigabit Ethernet network

Sannomiya Hiromi, Takada Naoki, Sakaguchi Tomoya, Nakayama Hirotaka, Oikawa Minoru, Mori Yuichiro, Kakue Takashi, Shimobaba Tomoyoshi, Ito Tomoyoshi

Author Affiliations

  • Kochi Daigaku
  • Kochi Daigaku
  • Kochi Daigaku
  • National Astronomical Observatory of Japan
  • Kochi Daigaku
  • Kochi Daigaku
  • Chiba Daigaku
  • Chiba University
  • Chiba Daigaku Daigakuin Kogaku Kenkyuka Kogakubu

Abstract

Systems containing multiple graphics-processing-unit (GPU) clusters are difficult to use for real-time electroholography when using only a single spatial light modulator, because the transfer of the computer-generated hologram data between the GPUs is bottlenecked. To overcome this bottleneck, we propose a rapid GPU packing scheme that significantly reduces the volume of the required data transfer. The proposed method uses a multi-GPU cluster system connected with a cost-effective gigabit Ethernet network. In tests, we achieved real-time electroholography of a 3D video presenting a point-cloud 3D object made up of approximately 200,000 points.

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