All-optical NRZ wavelength conversion based on a single hybrid III-V/Si SOA and optical filtering
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Optics Express
Abstract
The rapid growth of the internet and internet-related services call for large-capacity and highspeed
data networking. All-optical networking allows for data reconfiguration directly in the
optical layer rather than in the electronic layer. Since no optical-to-electrical-to-optical (OEO)
data conversions are involved, power consumption and bandwidth of such communication
networks can be substantially improved. An important function that needs to be implemented
for all-optical networks is all-optical wavelength conversion (AOWC). For example, in
wavelength division multiplexed (WDM) networks AOWC can remove wavelength blocking
in optical cross connects [1].
AOWC based on semiconductor optical amplifiers (SOA) has a number of advantages,
including high-speed operation and easy integration with other optoelectronic and passive
waveguide components. Many SOA-based AOWC techniques on the InP platform have been
reported, achieving data rates up to 320 Gb/s [2–6], based on cross-gain modulation (XGM),
cross-phase modulation (XPM) or four wave mixing (FWM). 2R/3R regeneration and the
wavelength conversion of advanced modulation format signals have also been realized using
SOA-based Mach-Zehnder interferometric structures [7, 8]. Most experiments are carried out
using a Return-to-Zero (RZ) data format, while the Non-Return-to-Zero (NRZ) data format is
still the dominant one in commercial optical networks. AOWC for NRZ signals has been
reported by means of an SOA-MZI based push-pull structure [9], bidirectional driving
schemes [10] or a differentially-biased scheme
Description
Keywords
Optical NRZ wavelength conversion, Hybrid III-V/Si SOA, Optical filtering
Citation
Wu, Y., Huang, Q., Keyvaninia, S., Katumba, A., Zhang, J., Xie, W., ... & Roelkens, G. (2016). All-optical NRZ wavelength conversion based on a single hybrid III-V/Si SOA and optical filtering. Optics Express , 24 (18), 20318-20323. http://dx.doi.org/10.1364/OE.24.020318