2.1.2 Microwave based electrical read-out of optical sensors

Event
20. GMA/ITG-Fachtagung Sensoren und Messsysteme 2019
2019-06-25 - 2019-06-26
Nürnberg, Germany
Chapter
2.1 Optische Messtechnik 2
Author(s)
U. Nordmeyer, N. Neumann, X. Wang, D. Plettemeier - TU Dresden (Deutschland), T. Thiel - AOS GmbH, Dresden (Deutschland), K. Kojucharow - KMDC, Dresden (Deutschland)
Pages
119 - 124
DOI
10.5162/sensoren2019/2.1.2
ISBN
978-3-9819376-0-2
Price
free

Abstract

Optical fiber sensors cover a wide range of applications. They offer versatile advantages including resilience against electromagnetic interference, biocompatibility and chemical resistivity. Even in environments with restricted accessibility, integration difficulties can be overcome by using Radio-over-Fiber (RoF) technology. Conventionally, the evaluation of optical fiber sensors is carried out optically by analysing the amplitude or spectrum of either the transmitted or the reflected light. A novel approach is to feed an RF modulated laser into the optical sensor and carry out a full electrical analysis of the resulting RF signal, which is changed by the sensors characteristics. This method will be investigated in the present paper along with different sensors and their applicability for this scheme will be discussed.

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