Machine Learning Methods for Control of Fibre Lasers with Double Gain Nonlinear Loop Mirror

Picosecond Square Pulse Generation Using Nonlinear Fibre Loop Mirror

characteristics at 20°C. The threshold current (density) is 57mA (-3.2kA/cm2), which is as low as that for a 650nmband laser diode with a double-heterostructure (DH structure) [l]. We believe this to be the lowest ever value for a 630nmband AlGaInP laser diode. The maximum CW output power is -15mW, and this is limited by the C O D (catastrophic optical damage) of this structure. The slope effic...

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Nonlinear Dynamics in Directly Modulated Semiconductor Lasers with Optical Loop Mirror Feedback

The investigation of the nonlinear dynamics of a semiconductor laser based on nonlinear optical loop mirror (NOLM) feedback using Ge doped optical fiber was carried out experimentally. Animations of compilations of the output power as a function of time series and phase plane with effects of optical feedback level, carrier current and modulation signal strength are demonstrated as a tool to giv...

A Power Efficient Gain Enhancing Technique for Current Mirror

This work introduces a new and simple method for adjusting the gain of current mirror. The major advantage of the proposed architecture is that, unlike the conventional variable gain current mirror, it does not need the change of the biasing current to adjust current gain. Therefore, the power dissipation remains constant in all of the gain settings. In addition, the proposed variable gain curr...

Design and Simulation of Double Loop Control for Power Converter Fed Variable Speed DC Drive