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All-Optical 160-Gbit/s Retiming System Using Fiber Grating Based Pulse Shaping Technology

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9 Author(s)
Francesca Parmigiani ; Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK ; Leif Katsuo Oxenlowe ; Michael Galili ; Morten Ibsen
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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.

Published in:

Journal of Lightwave Technology  (Volume:27 ,  Issue: 9 )