Kazuyoshi Yamazaki received ISOM'18 Poster Paper Award.

Kazuyoshi Yamazaki received ISOM'18 Poster Paper Award. ISOM'18 is the International Symposium on Imaging, Sensing and Optical Memory.

The title of the paper is "Environmentally Robust Phase Detection for Holographic Data Storage." Holographic memory is being developed as a super-high capacity data strage for explosively increasing computer data. For the phase-encoding technique, which is an promising data recording scheme for holographic memory, homodyne phase detection has been studied. In the conventional homodyne phase detection, the differential signals are operated by the signals of two cameras, and a phase error occurs when the relative intensity deviation occurs.

In contrast, proposed phase detection method utilizes differential page signals detected by a single camera and thus has an advantage in terms of detection error due to signal intensity deviation among multiple cameras.

Therefore, more robust phase detection system against camera sensitivity deviation, dirt, and dust will be realized using the proposed method.In this paper, we experimentally confirmed that proposed phase detection is more robust system than conventional homodyne phase detection for holographic data storage.

• Yamaguchi Laboratory