Optical Review

, Volume 9, Issue 4, pp 141–145

Ultrafast Time-to-Two-Dimensional-Space Conversion System Using SHG Crystal


    • Osaka Science and Technology Center
  • Tsuyoshi Konishi
    • Department of Material and Life ScienceOsaka University
  • Yoshiki Ichioka
    • Nara National College of Technology

DOI: 10.1007/s10043-002-0141-x

Cite this article as:
Oshita, Y., Konishi, T. & Ichioka, Y. OPT REV (2002) 9: 141. doi:10.1007/s10043-002-0141-x


We propose an ultrafast optical time-to-two-dimensional (2-D) space conversion system using a crystal of β-BaB2O4. The proposed system can optically retrieve a 2-D spatial distribution (an image signal) from an ultra-short laser pulse modulated by an image. The fundamentals are the time-to-space transform and the spatial time-frequency transform. Optical time gating using a nonlinear optical crystal is applied for the time-to-space transform. The experimental system can convert modulated temporal signals into 2-D spatial distribution at the bit rate of 8 Tbit/s.

Key words

ultrafast opticsultrashort pulsenonlinear optical processingoptical spectrogramnonlinear optical crystalSHG crystaltime-frequency transform

Copyright information

© The Optical Society of Japan 2002