Title :
All-Optical 40-GHz Time-Domain Fourier Transformation Using XPM With a Dark Parabolic Pulse
Author :
Hirooka, Toshihiko ; Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai
Abstract :
We demonstrate a 40-GHz all-optical time-domain Fourier transformation, in which an ideal parabolic phase modulation is applied to a signal by cross-phase modulation (XPM) with a dark parabolic pulse. The dark optical parabolic pulse is generated by the line-by-line spectral manipulation of a 40-GHz picosecond optical pulse source using an arrayed waveguide grating pulse shaper. By applying the parabolic XPM, the time interval for eliminating linear waveform distortions is expanded to a full bit slot. Dispersion slope-induced distortion is successfully eliminated with this scheme.
Keywords :
Fourier transform optics; optical information processing; optical modulation; optical pulse generation; optical pulse shaping; phase modulation; XPM; all optical time domain Fourier transformation; cross phase modulation; dark parabolic pulse; dispersion slope induced distortion; frequency 40 GHz; parabolic phase modulation; Arrayed waveguide gratings; Optical arrays; Optical distortion; Optical pulse generation; Optical pulse shaping; Optical pulses; Optical waveguides; Phase modulation; Pulse modulation; Time domain analysis; Arrayed waveguide grating; optical Fourier transformation (OFT); optical parabolic pulse; optical phase modulation; optical signal processing; time lens;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2004879
