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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 31 — Nov. 1, 2009
  • pp: G88–G94

Long period grating refractive-index sensor: optimal design for single wavelength interrogation

Amita Kapoor and Enakshi K. Sharma  »View Author Affiliations


Applied Optics, Vol. 48, Issue 31, pp. G88-G94 (2009)
http://dx.doi.org/10.1364/AO.48.000G88


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Abstract

We report the design criteria for the use of long period gratings (LPGs) as refractive-index sensors with output power at a single interrogating wavelength as the measurement parameter. The design gives maximum sensitivity in a given refractive-index range when the interrogating wavelength is fixed. Use of the design criteria is illustrated by the design of refractive-index sensors for specific application to refractive-index variation of a sugar solution with a concentration and detection of mole fraction of xylene in heptane (paraffin).

© 2009 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(230.2285) Optical devices : Fiber devices and optical amplifiers

History
Original Manuscript: June 16, 2009
Revised Manuscript: September 12, 2009
Manuscript Accepted: September 13, 2009
Published: October 7, 2009

Citation
Amita Kapoor and Enakshi K. Sharma, "Long period grating refractive-index sensor: optimal design for single wavelength interrogation," Appl. Opt. 48, G88-G94 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-31-G88

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