All-optical technique for modulation format conversion from on-off-keying to alternate-mark-inversion | Zendy

James M. Dailey | Zendy; R.P. Webb | Zendy; R.J. Manning | Zendy

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All-optical technique for modulation format conversion from on-off-keying to alternate-mark-inversion

Author(s) -

James M. Dailey,

R.P. Webb,

R.J. Manning

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.021873

Subject(s) - optics , optical amplifier , phase shift keying , keying , phase modulation , interferometry , modulation (music) , quadrature amplitude modulation , mach–zehnder interferometer , computer science , physics , bit error rate , telecommunications , phase noise , decoding methods , laser , acoustics

We propose and numerically investigate for the first time a novel all-optical on-off-keying to alternate-mark-inversion modulation format converter operating at 40 Gbps employing a semiconductor optical amplifier (SOA)-based Mach-Zehnder interferometer (MZI). We demonstrate that this SOA-MZI operates as a pulse subtractor, and in the absence of patterning will produce perfectly phase inverted pulses regardless of the individual SOA phase excursions. We use a comprehensive computer model to illustrate the impact of patterning on the output phase modulation, which is quantified through the definition of the phase compression factor.

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