Article,
High quality of logic gates from the return arm of a Sagnac fiber interferometer
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 30 (18): 2459-2483 (2016)
DOI: 10.1080/09205071.2016.1257396
Abstract
In this paper, we analyze the characteristics of obtaining logic
functions and logic gates in the reflected output of the Sagnac
interferometer by unbalancing the interferometer through the effects of
group velocity dispersion and self-phase modulation, mapped by the
influence of the extinction ratio (XR) and also analyze the logic gates
of better quality by proposing accuracy precision ratio (PR) defined. We
studied the phase variation in the phase inserted to the input and we
analyzed the related parameters of modulation. We investigated intrinsic
features of reflection of the Sagnac interferometer and obtained the
logic gates AND, OR, and XOR, and the logical functions ZERO, ONE, A . B and A . B. A specific situation happens when rho = 0.3 and vertical bar epsilon vertical bar = 0.059W(1/2), where we find the logic gates AND,
OR, and XOR. Of all results, the XOR logic gate was obtained in a
greater phase variation interval. The XR had the highest contrast when rho = 0.2 and vertical bar epsilon vertical bar = 0.028 W-1/2. The
proposed reconfigurable theoretical set-up gives a contribution to the
design of optical networks by the analysis of the obtained logic gates
and logic functions in an all-optical environment. The best quality
logic gate is the AND gate presenting the vertical bar PRTOTAL vertical bar = 34.99 when Delta phi = 0.798 pi
Tags
- (pr);
- all-optical
- applications}
- gate;
- interferometer;
- logic
- network
- optical
- precision
- processing;
- ratio
- signal
- {sagnac
