Magnetic field interaction with guided light for detection of an active gaseous medium within an optical fiber
Date
2013
Authors
Englich, F.
Grabka, M.
Lancaster, D.
Monro, T.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Optics Express, 2013; 21(2):2491-2499
Statement of Responsibility
Florian V. Englich, Michal Grabka, David G. Lancaster, and Tanya M. Monro
Conference Name
Abstract
We report a novel fiber-optic sensing architecture for the detection of paramagnetic gases. By interacting a modulated magnetic field with guided light within a microstructured optical fiber, it is possible to exploit Faraday Rotation Spectroscopy (FRS) within unprecedentedly small sample volumes. This approach, which utilizes magnetic circularbirefringence and magnetic circular dichroism effects, is applied to a photonic bandgap fiber to detect molecular oxygen and operates at a wavelength of 762.309 nm. The optical fiber sensor has a 4.2 nL detection volume and 14.8 cm long sensing region. The observed FRS spectra are compared with a theoretical model that provides a first nderstanding of guided-mode FRS signals. This FRS guided-wave sensor offers the prospect of new compact sensing schemes.
School/Discipline
Dissertation Note
Provenance
Description
Link to a related website: http://pdfs.semanticscholar.org/04fc/a944490d6b18d0104358fe85193c48acb092.pdf, Open Access via Unpaywall
Access Status
Rights
© 2013 Optical society of America