HOLOGRAPHIC DATA STORAGE DEVICE WITH SINGLE-ARM STRUCTURE

    公开(公告)号:EP3846168A1

    公开(公告)日:2021-07-07

    申请号:EP20217058.5

    申请日:2020-12-23

    摘要: The present invention relates to a holographic data storage device with a single-arm structure, and belongs to the technical field of optical holographic storage. According to the device disclosed in the present invention, a part of a reference arm and a part of a signal arm are integrated together to form a single-arm structure, which can not only reduce the number of optical and mechanical elements, but also reduce the system volume and cost without degrading performance. In addition, a signal beam and a reference beam share the same relay lens, so that the impact of environmental interference on the two beams is equal, and the stability of the entire system is improved.