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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 19 — Jul. 1, 2007
  • pp: 4081–4091

Multimode all-fiber quasi-distributed refractometer sensor array and cross-talk mitigation

Marko Kežmah and Denis Ðonlagić  »View Author Affiliations


Applied Optics, Vol. 46, Issue 19, pp. 4081-4091 (2007)
http://dx.doi.org/10.1364/AO.46.004081


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Abstract

The analysis and design of a quasi-distributed multimode fiber refractometer array is presented. The main challenge in the design of a practical quasi-distributed sensor array proved to be in mitigation of otherwise pronounced cross-talk effects among the individual sensors in the network. The cross-talk effects originate from mode filtering properties and the strong mode excitation dependence on the multimode refractometer sensors that constitute the array. The introduction of mode conditioning based on fiber mode filters and mode mixers effectively reduced the cross talk to a negligible level while providing the desired sensor response at acceptable collateral losses to the network. A comprehensive experimental analysis was carried out to provide detailed insight into the multimode sensor array behavior and to obtain data necessary for an overall and effective network design.

© 2007 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.4820) Instrumentation, measurement, and metrology : Optical systems

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 20, 2006
Manuscript Accepted: February 16, 2007
Published: June 12, 2007

Citation
Marko Kezmah and Denis Ðonlagic, "Multimode all-fiber quasi-distributed refractometer sensor array and cross-talk mitigation," Appl. Opt. 46, 4081-4091 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-19-4081

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