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Flat-Top Pulse Generation by the Optical Fourier Transform Technique for Ultrahigh Speed Signal Processing

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6 Author(s)
Palushani, E. ; Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark ; Oxenlowe, L.K. ; Galili, M. ; Mulvad, H.
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This paper reports on the generation of 1.6-ps full-width at half-maximum flat-top pulses by the optical Fourier transform technique, and the utilization of these pulses in a 320-Gb/s demultiplexing experiment. It is demonstrated how a narrow pulse having a 15-nm wide third-order super-Gaussian spectral intensity profile is mapped into a flat-top pulse resembling its spectrum by simple propagation in SMF. Theoretical and experimental descriptions are given on flat-top pulse generation, and an experimental validation of the systems performance of the pulses is carried out, demonstrating a benefit in terms of timing tolerance.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:45 ,  Issue: 11 )

Date of Publication:

Nov. 2009

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