Optical Review

, Volume 9, Issue 4, pp 141–145

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

  • Yoshinori Oshita
  • Tsuyoshi Konishi
  • Yoshiki Ichioka


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 optics ultrashort pulse nonlinear optical processing optical spectrogram nonlinear optical crystal SHG crystal time-frequency transform 


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Copyright information

© The Optical Society of Japan 2002

Authors and Affiliations

  • Yoshinori Oshita
    • 3
  • Tsuyoshi Konishi
    • 1
  • Yoshiki Ichioka
    • 2
  1. 1.Department of Material and Life ScienceOsaka UniversitySuita, OsakaJapan
  2. 2.Nara National College of TechnologyYamatokoriyama, NaraJapan
  3. 3.Osaka Science and Technology CenterIzumi, OsakaJapan

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