Picture of UK Houses of Parliament

Leading national thinking on politics, government & public policy through Open Access research

Strathprints makes available scholarly Open Access content by researchers in the School of Government & Public Policy, based within the Faculty of Humanities & Social Sciences.

Research here is 1st in Scotland for research intensity and spans a wide range of domains. The Department of Politics demonstrates expertise in understanding parties, elections and public opinion, with additional emphases on political economy, institutions and international relations. This international angle is reflected in the European Policies Research Centre (EPRC) which conducts comparative research on public policy. Meanwhile, the Centre for Energy Policy provides independent expertise on energy, working across multidisciplinary groups to shape policy for a low carbon economy.

Explore the Open Access research of the School of Government & Public Policy. Or explore all of Strathclyde's Open Access research...

High-speed, solid state, interferometric interrogator and multiplexer for fiber Bragg grating sensors

Orr, Philip and Niewczas, Pawel (2011) High-speed, solid state, interferometric interrogator and multiplexer for fiber Bragg grating sensors. Journal of Lightwave Technology, 29 (22). 3387 - 3392. ISSN 0733-8724

[img] PDF (High-Speed, Solid State, Interferometric Interrogator and Multiplexer for Fibre Bragg Grating Sensors)
06025233_WDM_Switched_Interrogator.pdf
Preprint
License: Unspecified

Download (492kB)

    Abstract

    We report on the design and prototyping of a robust high-speed interferometric multiplexer and interrogator for fiber Bragg grating sensors. The scheme is based on the combination of active WDM channel switching and passive, instantaneous interferometry, allowing the resolution of virgin interferometric interrogators to be retained at MHz multiplexing rates. In this article the system design and operation are described, and a prototype scheme is characterized for three sensors and a multiplexing rate of 4 kHz, demonstrating a noise floor of 10 nε/√Hz and no cross-sensitivity. It is proposed that the system will be applicable to demanding monitoring applications requiring high speed and high resolution measurements across the sensor array.