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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3822–3825

Enhanced responsivity with skew ray excitation of reflection- and transmission-type refractometric sensors

George Y. Chen, Christophe A. Codemard, Richard J. Lewis, Lukasz Jankowski, Jaclyn S. Chan, Philip M. Gorman, and Michalis N. Zervas  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3822-3825 (2014)
http://dx.doi.org/10.1364/OL.39.003822


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Abstract

The responsivity of optical fibers to refractive index can be enhanced using high-order skew rays compared with using meridional rays. Skew rays can have a much higher number of reflections with increased interaction length along the core–cladding interface, which gives rise to stronger interactions with the external medium. Reflection/transmission-type refractometric sensors based on twin-coupled-core and multimode fibers showed one/two orders of magnitude increase in responsivity with skew ray excitation. The responsivity and sensitivity for the two types are 2000%/RIU, 1400%/RIU, and 4.9×105RIU, 7.0×105RIU, respectively.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2400) Fiber optics and optical communications : Fiber properties
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(350.5500) Other areas of optics : Propagation
(280.1415) Remote sensing and sensors : Biological sensing and sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 7, 2014
Revised Manuscript: May 14, 2014
Manuscript Accepted: May 16, 2014
Published: June 23, 2014

Citation
George Y. Chen, Christophe A. Codemard, Richard J. Lewis, Lukasz Jankowski, Jaclyn S. Chan, Philip M. Gorman, and Michalis N. Zervas, "Enhanced responsivity with skew ray excitation of reflection- and transmission-type refractometric sensors," Opt. Lett. 39, 3822-3825 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3822


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