Dispersion measurements of fibres
Date | Do, 28.05.2015 | |
Time | 11.15 | |
Speaker | Jos Kohn, Université de Fribourg and Institute of Applied Physics, University of Bern | |
Location | Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern | |
Program | The dispersion properties of a fibre are important for studying the signal transmission through fibres. I will present a method for chromatic dispersion measurements using a white light Mach Zehnder interferometer. Furthermore I propose a modified reference arm by superposing beams of different optical path lengths. This modification simplifies the dispersion measurement of high dispersion Fibre Bragg gratings. In addition I will present an outlook for a measurement method for determining the chromatic dispersion of short few mode fibres. The technique relies on ultrafast coincidence detection based on the up-conversion of energy-time entangled photons. | |
Link | www.iap.unibe.ch |