Ultrafast image transmission by optical time-to-two-dimensional-space-to-time-to-two-dimensional-space conversion

We propose an optical time-to-two-dimensional (2-D)-space-to-time-to-2-D-space conversion technique for ultrafast image transmission with ultrashort-pulse lasers. The proposed technique is based on the concepts of the time–space transform, the spatial time–frequency transform, and their inverses. We describe and analyze the proposed technique for ultrafast all-optical processors that can convert an input 2-D spatial object into a modulated ultrafast optical pulse sequence and can retrieve the original 2-D spatial image from the temporal signals transmitted through the optical fiber channel with ultrahigh bandwidth. To verify the proposed technique, we report preliminary experimental results.

[1]  Andrew M. Weiner,et al.  Programmable shaping of femtosecond optical pulses by use of 128-element liquid crystal phase modulator , 1992 .

[2]  K. Nelson,et al.  Multidimensional shaping of ultrafast optical waveforms. , 1996, Optics letters.

[3]  L. Cohen,et al.  Time-frequency distributions-a review , 1989, Proc. IEEE.

[4]  Martin C. Nuss,et al.  Time-variant linear pulse processing , 1996 .

[5]  Charles A. Brackett,et al.  Is there an emerging consensus on WDM network , 1996 .

[6]  Keith A. Nelson,et al.  Analysis of programmable ultrashort waveform generation using liquid-crystal spatial light modulators , 1995 .

[7]  P. Chu,et al.  A multilevel soliton communication system , 1995, LEOS '95. IEEE Lasers and Electro-Optics Society 1995 Annual Meeting. 8th Annual Meeting. Conference Proceedings.

[8]  Y Fainman,et al.  All-optical parallel-to-serial conversion by holographic spatial-to-temporal frequency encoding. , 1995, Optics letters.

[9]  D. Kane,et al.  Characterization of arbitrary femtosecond pulses using frequency-resolved optical gating , 1993 .

[10]  Hidenori Taga,et al.  Long distance transmission experiments using the WDM technology , 1996 .

[11]  Andrew M. Weiner,et al.  Analysis of picosecond pulse shape synthesis by spectral masking in a grating pulse compressor , 1986 .

[12]  S. Baroni,et al.  Wavelength requirements in arbitrarily connected wavelength-routed optical networks , 1997 .

[13]  James P. Gordon,et al.  Energy transfers and frequency shifts from three soliton collisions in a multiplexed transmission line with periodic amplification , 1996 .

[14]  A. Cohen,et al.  Wavelets: the mathematical background , 1996, Proc. IEEE.

[15]  D. Brady,et al.  Time-of-flight cross correlation on a detector array for ultrafast packet detection. , 1993, Optics letters.

[16]  Y Li,et al.  Optical realization of wavelet transform for a one-dimensional signal. , 1992, Optics letters.

[17]  Yeshaiahu Fainman,et al.  Femtosecond pulse imaging: ultrafast optical oscilloscope , 1997 .