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After Image
(2013)
The University for Children is a very successful event aiming to spark children‧s interest in science, in this particular lecture in Optics and Photonics. It is from brain research that we know about the significant dependence of successful learning on the fun factor. Researchers in this field have shown that knowledge acquired with fun is stored for a longer time in the long-term memory and can be used both more efficiently and more creatively [1], [2]. Such an opportunity to inspire the young generation for science must not be wasted. The world of Photonics and Optics provides us with a nearly inexhaustible source of opportunities of this kind.
This paper focuses on the effects of differential mode delay (DMD) on the bandwidth of multimode optical fibres. First an analytical solution for the computation of the differential mode time delay is presented. The electrical field of each mode is calculated by the numerical solution of the Helmholtz equation. Based on this solution the modal power distribution as well as the fibre's impulse response under different launching conditions can be obtained.
Next, the refractive-index profile of two fibres is modelled on the basis of DMD measurements. It is shown that these measurements provide enough information to predict the fibre's propagation characteristics under different launch conditions (excitation conditions).
Member Lens
(2013)
Our university carries out various research projects. Among others, the project Schluckspecht is an interdisciplinary work
on different ultra-efficient car concepts for international contests. Besides the engineering work, one part of the project
deals with real-time data visualization. In order to increase the efficiency of the vehicle, an online monitoring of the
runtime parameters is necessary.
The driving parameters of the vehicle are transmitted to a processing station via a wireless network connection. We plan
to use an augmented reality (AR) application to visualize different data on top of the view of the real car.
By utilizing a mobile Android or iOS device a user can interactively view various real-time and statistical data. The car
and its components are meant to be augmented by various additional information, whereby that information should
appear at the correct position of the components. An engine e.g. could show the current rpm and consumption values. A
battery on the other hand could show the current charge level.
The goal of this paper is to evaluate different possible approaches, their suitability and to expand our application to other
projects at our university.