To maximize the use of 132 KV power transmission line infrastructures in Iraq, we design optical fiber network over it based on present and future traffic demand. We lay out the optical power ground wire (OPGW) with 36 fibers and architecture the optical network with 32 DWDM wavelength channels at 10 Gb/s each. Ethernet switching and impairment awareness are also implemented in the optical netw...

In this paper, a new all-optical switching structure is proposed and analyzed. Switching is accomplished by embedded Kerr nonlinear rods in the coupling region of a photonic crystal directional coupler. We show that by modifying the supermodes dispersion curves, the switch length can be reduced 22% with respect to similar structures. Finite-Difference TimeDomain and Plane Wave Expansion methods...

We have demonstrated the use of solitary wave collisions in optical pulse switching. Our apparatus consisted of a fiber ring with 11 sections of polarization-maintaining fiber, with successive sections fusion spliced with the axes rotated 90 deg. The configuration yielded enhanced transmission (autocorrelation contrast ratio 2.82:1), in agreement with expectation for this number of sections and...