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Fabrication of a compact reflective long-period grating sensor with a cladding-mode-selective fiber end-face mirror
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2009 (English)In: Optics Express, ISSN 1094-4087, Vol. 17, no 20, 17976-17982 p.Article in journal (Refereed) Published
Abstract [en]

A long-period grating (LPG) based compact optical fiber sensor working in reflection mode is demonstrated. A technique to make a mirror on the cladding region of a fiber end-face to reflect only the cladding modes was realized by growing a polymeric microtip on the core region of the fiber end-face, by photopolymerization, followed by coating the fiber end-face with an aluminum film. Using the cladding-mode-selective fiber end-face mirror, the transmission spectrum of the LPG was "inverted" and reflected. Preliminary results of using the sensor to measure the refractive index of glycerol/water solutions were successfully demonstrated.

Place, publisher, year, edition, pages
2009. Vol. 17, no 20, 17976-17982 p.
Keyword [en]
refractive-index sensor, enhanced sensitivity, bragg gratings, temperature, biosensors, taper
URN: urn:nbn:se:kth:diva-18809ISI: 000270295300080ScopusID: 2-s2.0-70349664746OAI: diva2:336856
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2013-11-19Bibliographically approved

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Wang, Yan ChunHe, Sailing
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Electromagnetic Engineering
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