All-optical decrementing of a packet's time-to-live (TTL) field using logic XOR gates.
A novel optical time-to-live (TTL) method based on the use of logic XOR gates is proposed. All-optical decrementing of a packet's TTL field is demonstrated employing a cascade of two SOA-based Mach-Zehnder interferometers. The principle of operation is validated by means of simulations, showing a good extinction ratio (higher than 10 dB) at the output of the 1-bit subtractor.
Vilar
Ruth
R
Valencia Nanophotonics Technology Center, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. rutvima@ntc.upv.es
Martínez
José M
JM
Ramos
Francisco
F
Martí
Javier
J