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Optical signal processing based on self-induced polarization rotation in a semiconductor optical amplifier

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7 Author(s)
Calabretta, N. ; Cobra Res. Inst., Eindhoven Univ. of Technol., Netherlands ; Liu, Y. ; Huijskens, F.M. ; Hill, M.T.
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We demonstrate novel optical signal processing functions based on self-induced nonlinear polarization rotation in a semiconductor optical amplifier (SOA). Numerical and experimental results are presented, which demonstrate that a nonlinear polarization switch can be employed to achieve all-optical logic. We demonstrate an all-optical header processing system, an all-optical seed pulse generator for packet synchronization, and an all-optical arbiter that can be employed for optical buffering at a bit rate of 10 Gb/s. Experimental results indicate that optical signal processing functions based on self-polarization rotation have a higher extinction ratio and a lower power operation compared with similar functions based on self-phase modulation.

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Lightwave Technology, Journal of  (Volume:22 ,  Issue: 2 )