High-bandwidth generation of duobinary and alternate-mark-inversion modulation formats using SOA-based signal processing

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Dailey, James M.
Power, Mark J.
Webb, Rod P.
Manning, Robert J.
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Optical Society of America
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We report on the novel all-optical generation of duobinary (DB) and alternate-mark-inversion (AMI) modulation formats at 42.6 Gb/s from an input on-off keyed signal. The modulation converter consists of two semiconductor optical amplifier (SOA)-based Mach-Zehnder interferometer gates. A detailed SOA model numerically confirms the operational principles and experimental data shows successful AMI and DB conversion at 42.6 Gb/s. We also predict that the operational bandwidth can be extended beyond 40 Gb/s by utilizing a new pattern-effect suppression scheme, and demonstrate dramatic reductions in patterning up to 160 Gb/s. We show an increasing trade-off between pattern-effect reduction and mean output power with increasing bitrate.
Semiconductor optical amplifiers , All-optical devices , Nonlinear optical signal processing , Optical logic devices
Dailey, J.M.; Power, M.J.; Webb, R.P.; Manning, R.J.; (2011) 'High-Bandwidth Generation of Duobinary and Alternate-Mark-Inversion Modulation Formats Using SOA-Based Signal Processing'. Optics Express, 19 (27):25954-25968.
©2011 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-27-25954 Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.