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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 14, Iss. 4 — Dec. 25, 2010
  • pp: 337–341

High Sensitive Fiber Optic Temperature Sensor Based on a Side-polished Single-mode Fiber Coupled to a Tapered Multimode Overlay Waveguide

Prerana Prerana, Ravendra Kumar Varshney, Bishnu Pada Pal, and Bezwada Nagaraju  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 14, Issue 4, pp. 337-341 (2010)


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Abstract

A high sensitivity fiber optic temperature sensor based on a side-polished fiber (SPF) coupled to a tapered multimode overlay waveguide (MMOW) is proposed and studied. Both tapered and non-tapered MMOW were considered to study the effect of tapering of MMOW on the characteristics of the device and to investigate the criticality of the uniformity of the multimode overlay waveguide over the SPF. Present study shows that tapering of the MMOW can be used to tune the desired wavelength range without any loss in the sensitivity. Sensitivity up to 9 nm/<TEX>$^{\circ}C$</TEX> within the temperature range of 25 to <TEX>$100^{\circ}C$</TEX> can be achieved with the proposed sensor, almost 6 times higher compared even to state-of-the-art high-sensitivity grating-based fiber optic temperature sensors.

© 2010 Optical Society of Korea

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors

History
Original Manuscript: August 2, 2010
Revised Manuscript: October 31, 2010
Manuscript Accepted: November 2, 2010
Published: December 25, 2010

Citation
Prerana Prerana, Ravendra Kumar Varshney, Bishnu Pada Pal, and Bezwada Nagaraju, "High Sensitive Fiber Optic Temperature Sensor Based on a Side-polished Single-mode Fiber Coupled to a Tapered Multimode Overlay Waveguide," J. Opt. Soc. Korea 14, 337-341 (2010)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-14-4-337


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