TY - JOUR
T1 - Theoretical analysis and performance investigation of ultrafast all-optical Boolean XOR gate with semiconductor optical amplifier-assisted Sagnac interferometer
AU - Zoiros, K. E.
AU - Papadopoulos, G.
AU - Houbavlis, T.
AU - Kanellos, G. T.
PY - 2006/2/15
Y1 - 2006/2/15
N2 - A comprehensive theoretical model of an ultrafast all-optical Boolean XOR gate implemented with a semiconductor optical amplifier (SOA)-assisted Sagnac interferometer is presented. The model accounts for the SOA small signal gain, linewidth enhancement factor and carrier lifetime, the switching pulses energy and width and the Sagnac loop asymmetry. By undertaking a detailed numerical simulation, the influence of these key parameters on the metrics that determine the quality of switching is thoroughly investigated and simple design rules are extracted for their proper selection so as to ensure optimum operation. The obtained results are in good agreement with the published experimental measurements and confirm the feasibility of realizing the gate at 10 Gb/s with fairly high performance. The model can be extended for studying more complex all-optical circuits of enhanced functionality in which the XOR gate is the basic building block.
AB - A comprehensive theoretical model of an ultrafast all-optical Boolean XOR gate implemented with a semiconductor optical amplifier (SOA)-assisted Sagnac interferometer is presented. The model accounts for the SOA small signal gain, linewidth enhancement factor and carrier lifetime, the switching pulses energy and width and the Sagnac loop asymmetry. By undertaking a detailed numerical simulation, the influence of these key parameters on the metrics that determine the quality of switching is thoroughly investigated and simple design rules are extracted for their proper selection so as to ensure optimum operation. The obtained results are in good agreement with the published experimental measurements and confirm the feasibility of realizing the gate at 10 Gb/s with fairly high performance. The model can be extended for studying more complex all-optical circuits of enhanced functionality in which the XOR gate is the basic building block.
KW - All-optical Boolean XOR logic
KW - All-optical signal processing
KW - All-optical switching
KW - Semiconductor optical amplifier (SOA)
KW - SOA-assisted Sagnac interferometer
UR - http://www.scopus.com/inward/record.url?scp=29344470722&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2005.07.059
DO - 10.1016/j.optcom.2005.07.059
M3 - Article (Academic Journal)
AN - SCOPUS:29344470722
SN - 0030-4018
VL - 258
SP - 114
EP - 134
JO - Optics Communications
JF - Optics Communications
IS - 2
ER -