Abstract
Multicore fibres (MCF) offer the opportunity of both increasing communication capacity as well as offering enhanced flexibility in the network scenario. Software-defined networks (SDN) are capable of handling novel functionalities coming from physical layer with the aim of better exploit overall connectivity. In this paper, network defragmentation is considered combined with space-division multiplexing (SDM). In particular, SDN-driven effective defragmentation technique on a seven-core MCF is demonstrated. This paper includes a networking view about defragmentation principle exploiting SDN control plane. At the same time, an accurate model and numerical investigations reveal feasibility and system constraints. Push–pull operation for a coherent DQPSK transmission has been experimentally demonstrated together with full dynamic defragmentation. By using a high-speed-integrated dual-output intensity modulator switch for core adaptation in combination with hitless frequency shift, quasi-hitless SDN-driven reconfiguration performances are shown. Defragmentation for
$40\,\text{Gb/s}$
DQPSK and
$80\,\text{Gb/s}$
16QAM signals is demonstrated. Switching from core 2 to core 1,
$100\text{-}\text{GHz}$
frequency shift, and switching back to core 2 is obtained losing just
$1800$
and
$2600$
symbols, respectively.
© 2015 IEEE
PDF Article
More Like This
Software defined networking (SDN) over space division multiplexing (SDM) optical networks: features, benefits and experimental demonstration
N. Amaya, S. Yan, M. Channegowda, B. R. Rofoee, Y. Shu, M. Rashidi, Y. Ou, E. Hugues-Salas, G. Zervas, R. Nejabati, D. Simeonidou, B.J. Puttnam, W. Klaus, J. Sakaguchi, T. Miyazawa, Y. Awaji, H. Harai, and N. Wada
Opt. Express 22(3) 3638-3647 (2014)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription