Self-mixing interferometry signal acquisition techniques
Speaker: Dr Julien Perchoux, Université de Toulouse - INP\ENSEEIHT, Laboratoire d'Optoélectronique pour les
When: 2009-12-11 11:00:00
Venue: Building GP South, 78-622, UQ St. Lucia Campus
Host: A/Prof Aleksandar Rakic
Abstract:Self-mixing interferometry (SMI) sensors which are a well-known for being low-cost, precise and easy to handle interferometric sensors have recently encountered a new interest with the use of improved laser sources such as Vertical-Cavity Surface-Emitting Lasers (VCSEL). Low-power consumption, beam properties, modulation bandwidth, have already led to the production of mass market velocity sensors and tends to make SMI sensors appropriate for high-performance sensing applications. However, electronics associated with these sensors requires particular attention as they shall allow signal-to-noise ratio and bandwidth improvement that is then required. The present seminar will address the specific problems of SMI signal acquisition and will propose appropriate solutions.
Biography:Julien Perchoux was born in Venissieux (France) in 1977. He obtained his Bachelor's degree in physics from Montpellier University. He is a qualified teacher of applied physics. He obtained its PhD from the National School of Aeronautics and Space of Toulouse (ENSAE - Supaero) in 2005. His thesis work was on the modelling and the characterization of intensity noise in AlGaAs VCSELs and its influence on the phase noise of radio-frequency optical links.
He joined LOSE (Laboratory of Optoelectronics for Embedded Systems) in 2005, as an assistant professor. He is presently working on possible advantages of using VCSELs in self-mixing detection methods.
Type: IEEE Qld MTT/AP Chapter and The University of Queensland ITEE School Seminar
Contact:rakic@itee.uq.edu.au