This paper reports the design, fabrication, and testing of a draw-bridge micromirror and to be integrated a monolithic 4 × 4 optical crossconnect (OXC) having dimensions about 4 mm × 4 mm. The OXC is composed of 16 individual draw-bridge micromirror, is fabricated by the surface micromachining technology and then manually assembled. In each draw-bridge micromirror, is driven by electrostatic fo...

The performance of an optical switch that handles contention resolution using a fiber delay line (FDL) is modeled and evaluated. We propose using a simple optical buffer that contains only a single FDL for contention resolution. The analytical model derived for the performance of an optical switch based on this buffer is verified using simulations. The analytical model can be utilized with both...

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 describe how small perturbations applied to optical systems can be used to suppress or control optical chaos, spatio-temporal dynamics, and patterns. This research highlights the fact that complex behavior, such as chaos, has a beautiful and orderly underlying structure. We demonstrate that this orderly structure can be exploited for a variety of applications, such as stabilizing laser behav...

Optical and nonlinear-optical properties of negativeindex nanocomposite as well as the feasibility of a design of novel photonic microdevices and all-optical data processing chips are numerically simulated. Keywords—Numerical simulation, nano materials and nanostructures, negative-index metamaterials, nanophotonics, nano and micro devices, all-optical switches, optical frequency narrow-band fil...

State of the arts on guided-wave optical switch arrays are reviewed. In this paper, electro-optic Ti:LiNbO3 devices are mainly described in comparison with crosspoint switch element structures and switch array architectures. Packaging technologies and stability problems are discussed for practical system applications. Recent development on other materials such as semiconductor waveguides, therm...

This paper deals with an optical switching problem concerning an architecture represented by input-output request matrix. New algorithms such as LSA, QLSA, QEXACT and J-family are presented and thoroughly studied. J-family algorithms are some modifications of the well known DOUBLE algorithm. The study focuses on comparison of the proposed algorithms with known algorithms such as DOUBLE and EXAC...

Silicon photonic devices based on silicon photonic wire waveguides are especially attractive devices, since they can be ultracompact and low-power consumption. In this paper, we demonstrated various devices fabricated on silicon photonic wire waveguides. They included optical directional couplers, reconfigurable optical add/drop multiplexers, 1 × 2, 1 × 4, 1 × 8 and 4 × 4 optical switches, ring...

In this paper we discussed different switch architectures. We focus mainly on optical buffering. We investigate an all-optical buffer architecture comprising of cascaded stages of quantum-dot semiconductor optical amplifier-based tunable wavelength converters, at 160 Gb/s. We also propose the optical buffer with multi-wavelength converters based on quantum-dot semiconductor optical amplifiers. ...

In this paper we investigate the performance of an Optical Code Division Multiplexing/Wavelength Division Multiplexing (WDM/OCDM) Optical Packet Switch when impairment due to both Multiple Access Interference and Beat noise are taken into account. Analytical models are introduced to dimension the switch resources, in particular the number of optical codes carried on each wavelength. The Packet ...