Title :
20-fs pulse shaping with a 512-element phase-only liquid crystal modulator
Author :
Wang, H. ; Zheng, Z. ; Leaird, D.E. ; Weiner, A.M. ; Dorschner, T.A. ; Fijol, J.J. ; Friedman, L.J. ; Nguyen, H.Q. ; Palmaccio, L.A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
We report pulse shaping experiments in the 20-fs range using a 512-element phase-only liquid crystal modulator array. The results demonstrate the potential for significantly improved spectral resolution compared to 128-element liquid crystal modulators previously used for pulse shaping. Furthermore, we show that subtle nonlinear spatial dispersion has a profound effect on replica pulses arising due to the pixellated nature of the liquid crystal modulator and may dramatically reduce their (already low) peak intensity
Keywords :
liquid crystal devices; optical dispersion; optical pulse shaping; signal resolution; spatial light modulators; 20 fs; liquid crystal modulators; nonlinear spatial dispersion; optical pulse shaping; peak intensity; phase-only liquid crystal modulator; phase-only liquid crystal modulator array; pixellated liquid crystal modulator nature; pulse shaping; replica pulses; spatial light modulators; spectral resolution; Dispersion; Liquid crystals; Modulation coding; Optical modulation; Optical pulse shaping; Optical pulses; Phase modulation; Pulse modulation; Pulse shaping methods; Ultrafast optics;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.974244
