Abstract
This paper demonstrates a retiming system operating at rates of 40 and
160 Gbit/s, which incorporates a superstructured fiber Bragg grating (SSFBG)
as a pulse shaping element. The original data pulses are shaped into flat-topped
(rectangular) pulses to avoid conversion of their timing jitter into pulse
amplitude noise at the output of a nonlinear fiber-based Kerr switch. Thus
retiming is performed in a single step avoiding wavelength conversion. The
benefits of using shaped rather than conventional pulse forms in terms of
timing jitter reduction are confirmed by bit-error rate (BER) measurements.
© 2009 IEEE
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