HIS REPORT DESCRIBES the construction of a dynamic optical hybrid system for implementing multi-layer neural networks. The communication between neurons is performed by amplitude modulating optical signals with dynamic transmission filters realized with a ferroelectric liquid crystal spatial light modulator (FLC-SLM). A large part of the information processing is thus performed in parallel. The...

With the aim of supporting and enhancing high-capacity communication networks, such as telephony, Internet and others, this work has investigated: • transmission gains with time-slotted optical communication, • performance of optical add/drop multiplexers (OADMs) and optical crossconnects (OXCs), • OXC networks serving Internet Protocol (IP)-routers, • packet hop reductions in IP-controlled opt...

Method for applying spread-spectrum techniques to optical communication is presented. The interference suppression capability of spread-spectrum systems is shown to be enhanced by optical transform domain processing.Effects of jammer in DSSS communication system are demonstrated in thispaper.Several possible implementations of this system are suggested, and applications to fiber optics, laser r...

in this paper, the mer-co(nh3)3(no2)3 complex was used as a new precursor for synthesizing spinel-type cobalt oxide nanoparticles (co3o4nps).thermal decomposition of the complex at low temperature (175 °c) resulted in the co3o4nps without using expensive and toxic solvents or complicated equipment. xrd, ft-ir, sem, edx, and tem were employed to characterize the product, and its optical and magn...

In the present paper a novel structure for optical channel drop filter (CDF) based on photonic crystal ring resonator with circular core has been proposed. In order to design the proposed CDF, the plan wave expansion (PWE) method is applied for calculation of band structure and photonic band gap while the transmission characteristics of proposed CDF have been calculated using the finite differe...

In this design an optical ring resonator are embedded between two Horizontal input and output waveguides which has 4 orbitals around the center of the resonator so that each orbital consists of 8 rods with different size in which radius of larger orbitals rods are bigger than radius of smaller orbitals rods. The analysis of simulation results showed the proposed filter has the transmission effi...