Stabilizing an Interferometric Delay with PI Control
نویسنده
چکیده
A Mach-Zhender style interferometric delay can be used to separate a pulses by a precise amount of time, act as a frequency comb, and measure lengths to extreme precision. The accuracy and precision for each application is dependent on the length stability in the interferometer itself. While passive length stabilization is enough for many applications, especially on a short time scale, relying solely on passive stability is not always sufficient or practical. Instead, this paper explores the effectiveness of active length stabilization, using a feedback loop from the interferometer’s output intensity at one port to a piezo-mounted mirror.
منابع مشابه
Design Supplementary Controller Based on Stabilizing Effect of Delay for Damping Inter Area Oscillations in a Power System
The delay associated with signal transmission through the wide-area measurement system reduces the functionality of the power oscillation damping control system. One of the important issues is the poor operation of the supplementary controller against delay existence, which limits the efficiency of damping of ancillary equipment, such as SVCs in a power system. This paper as a solution proposes...
متن کاملA New Concept on Pi Design for Time Delay Systems: Weighted Geometrical Center
In this paper, a new concept on PI design for time delay systems is introduced. The concept is weighted geometrical center of the stabilizing controller parameters region. Calculating of the stabilizing control parameters region is based on plotting the stability boundary locus in the (kp, ki) plane and then computing stabilizing values of the parameters of a PI controller. The weighted geometr...
متن کاملDesign of Generalized Predictive Control for the Stabilizing Loop from a two-axis Gimbal Seeker, Considering Cross-Coupling in Between two Channels
In this research, Generalized Predictivecontrol (GPC) is proposed for the control of a stabilizing loop from a two axis gimbal seeker. In fact, there are some views about using GPC type controller which are two folds. First, it drives the stabilization loops that are made by a DC motor, Rate Gyro, inertia and cross coupling unit in between two channels using the predictive model type controller...
متن کاملDetermination of All Stabilizing Constant Feedback Gains for Open- loop Unstable Second-order Systems with Time Delay
In this paper, the problem of stabilizing an open-loop unstable second-order system with time delay is considered. A constant feedback gain is utilized to stabilize the system. Using a modified version of Hermite-Biehler Theorem, which is applicable to quasi-polynomialsthe complete set of stabilizing constant feedback gains for open-loop unstable plants, is determined. The desired closed-loop p...
متن کاملStabilization of a class of delay systems using PI methods
We study in this note the H∞-stabilizing properties of PI controllers for particular SISO delay systems of three classes : dead-time systems as well as retarded or neutral systems. For a subclass of neutral systems, this enables us to deduce a parametrization of all H∞-stabilizing controllers .
متن کامل