RT Journal Article
SR 00
ID 10.1109/JSTQE.2016.2551943
A1 Annoni, Andrea
A1 Guglielmi, Emanuele
A1 Carminati, Marco
A1 Grillanda, Stefano
A1 Ciccarella, Pietro
A1 Ferrari, Giorgio
A1 Sorel, Marc
A1 Strain, Michael
A1 Sampietro, Marco
A1 Melloni, Andrea
A1 Morichetti, Francesco
T1 Automated routing and control of silicon photonic switch fabrics
JF IEEE Journal of Selected Topics in Quantum Electronics
YR 2016
FD 2016-12
VO 22
IS 6
AB Automatic reconfiguration and feedback controlled routing is demonstrated in an 8×8 silicon photonic switch fabric based on Mach-Zehnder interferometers. The use of non-invasive Contactless Integrated Photonic Probes (CLIPPs) enables real-time monitoring of the state of each switching element individually. Local monitoring provides direct information on the routing path, allowing an easy sequential tuning and feedback controlled stabilization of the individual switching elements, thus making the switch fabric robust against thermal crosstalk, even in the absence of a cooling system for the silicon chip. Up to 24 CLIPPs are interrogated by a multichannel integrated ASIC wire-bonded to the photonic chip. Optical routing is demonstrated on simultaneous WDM input signals that are labelled directly on-chip by suitable pilot tones without affecting the quality of the signals. Neither preliminary circuit calibration nor lookup tables are required, being the proposed control scheme inherently insensible to channels power fluctuations.
PB Institute of Electrical and Electronics Engineers
SN 1077-260X
LK https://eprints.gla.ac.uk/118134/