Optical Review

, Volume 9, Issue 4, pp 141-145

First online:

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

  • Yoshinori OshitaAffiliated withOsaka Science and Technology Center Email author 
  • , Tsuyoshi KonishiAffiliated withDepartment of Material and Life Science, Osaka University
  • , Yoshiki IchiokaAffiliated withNara National College of Technology

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


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