[17p-A37-1~6] CS.2 Code-sharing Session of 3.2 & 4.4

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-A37-2] A study of signal phase detection using a Hartmann mask

〇Hayato Otsuka¹, Fujimura Ryushi^1,2 (1.Utsunomiya Univ., 2.IIS, Univ. of Tokyo)

Keywords:

optical memory,holographic memory,Hartmann Mask

Holographic memory is a promising technology for large capacity recording and high transfer rate. We have studied a single-shot phase detection method using crosstalk, but the transfer rate is low. In this study, the Hartmann mask is used to eliminate the need for known-phase pixels, which is expected to improve the transfer rate. Simulation results show that the lowest error rate is obtained with a phase difference range of ±100° between adjacent pixels when differential encoded phase signals are used.