Two-section semiconductor optical amplifier used as an efficient channel dropping node

Efficient Optical Phase modalation using A Semiconductor Optical Amplifier

Semiconductor-Optical-Amplifier Mach-Zehnder Interferometer Based Optical Networks

In this paper, an all-optical AND logic scheme which exploits the cross-phase modulation (XPM) effect in semiconductor-optical-amplifier-assisted Mach-Zehnder Interferometer (SOA-MZI), is proposed, performance analyzed and parameters optimized. The proposal is validated and the system performance under various parameters is examined through numerical simulations. With only moderate parameters, ...

All-optical logic gates using a semiconductor optical amplifier assisted by an optical filter

A simple all-optical logic device, composed of an SOA and an optical filter, is proposed. By utilizing optical filtering, multi-logic functions (AND, OR and XOR) are demonstrated at 10 Gb/s using the same setup, under different operation conditions. Simulations indicate that the device can operate at much higher bit rate. Introduction: All-optical logic gates have received considerable attentio...

An optical threshold function based on polarization rotation in a single semiconductor optical amplifier.

Optical threshold functions are a basic building block for all-optical signal processing, and this paper investigates a threshold function design reliant on a single active element. An optical threshold function based on nonlinear polarization rotation in a single semiconductor optical amplifier is proposed. It functions due to an induced modification of the birefringence of a semiconductor opt...

Design of quantum dot semiconductor optical amplifier by intelligence methods

The outstanding features of Quantum Dot Semiconductor Optical Amplifiers (QD-SOA’s) such as all-optical signal processing and signal regeneration are caused them are widely used in the optical communication systems. Due to the nano structure of these amplifiers, accurate design and modelling of them is a complex and challenging problem. This paper addresses design a QD-SOA. We present a novel m...