Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement

Orr, Philip and Perry, Marcus and Fusiek, Grzegorz and Niewczas, Pawel (2013) Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement. In: Proceedings of SPIE Volume 8794. SPIE--The International Society for Optical Engineering.. ISBN 9780819496348

[img] PDF (Solid-State interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement)
OPFN_EWOFS13_Submit.pdf - Accepted Author Manuscript

Download (506kB)

Abstract

We present a solid-state FBG array interrogator and multiplexer capable of determining absolute FBG wavelengths and of providing high-speed, high-resolution static and dynamic measurements. Using a described procedure, deployable on multiplexing passive-interferometric schemes, the system is able to determine initial sensor wavelengths and thereafter track wavelength changes with interferometric resolution. The scheme allows high-resolution interrogation of FBG sensor arrays to be applied to many industrial applications, where previously the lack of combined absolute and quasi-static wavelength measurement precluded the use of interferometric techniques. Using a preliminary laboratory embodiment, we demonstrate a wavelength determination accuracy of <0.3 nm and a measurement resolution of 10 fm/√Hz, and propose pathways to improved performance and miniaturisation.