A survey of recent literature on all optical networking is presented. Starting from multiplexing techniques and topological features, network design and performance issues are reviewed. Particular attention is devoted to Wavelength Division Multiplexing (WDM) networks. Static and dynamic solutions of the routing and wavelength assignment (RWA) problem are considered. Issues of current research ...

Three-dimensional photoacoustic microscopy (PAM) has gained considerable attention within the biomedical imaging community during the past decade. Detecting laser-induced photoacoustic waves by optical sensing techniques facilitates the idea of all-optical PAM (AOPAM), which is of particular interest as it provides unique advantages for achieving high spatial resolution using miniaturized embod...

in this paper a novel all-optical logic nand, nor and xor gate based on nonlinear directional coupler theory is demonstrated. we use the identical structure which contains three waveguides, for designing these gates; the only difference however, is the power of inputs light beam. in other words, while a beam with 4 w/μm in power considered as logical one, the output is nand gate and if a beam w...

Abstract Integrating all optical components of an coherence tomography (OCT) device into a single chip is non-trivial and challenging job. The design development such lab-on-a possible only via Micro-Opto-Electro-Mechanical System (MOEMS) technology. reproducible integrated fabrication would reduce cost size many folds as compared to bulk or fiber optic OCT system. A miniaturized less than 5mm ...

SEED (self-electrooptic effect device) configuration, symmetric(S) SEED switching characteristics, a single all-optical memory cell, and the packet switch structure are briefly introduced. By applying a planar integrated optical circuit based on SEEDs, the demonstration of an all-optical memory cell, which can be used in optical switching and optical data storing is introduced by using master-s...

This paper describes the optical circuit that enables to extract address from a transmitted cell in an all-optical manner. Nonlinear optical loop mirrors (NOLM’s) are used as all-optical switches in order to confirm the operation of the proposed circuit. The control pulses synchronized with address bits are generated from the transmitted cell. The address bits are successfully extracted without...

We demonstrate an all-optical switch that operates at ultra-low-light levels and exhibits several features necessary for use in optical switching networks. An input switching beam, wavelength , with an energy density of 10−2 photons per optical cross section = 2 / 2 changes the orientation of a two-spot pattern generated via parametric instability in warm rubidium vapor. The instability is indu...