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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 3 — Feb. 1, 2006
  • pp: 317–319

All-fiber multimode-interference-based refractometer sensor: proposal and design

Qian Wang and Gerald Farrell  »View Author Affiliations

Optics Letters, Vol. 31, Issue 3, pp. 317-319 (2006)

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A novel all-fiber refractometer sensor is proposed, which is based on multimode interference in the multimode fiber core section sandwiched between two single-mode fibers. A wide-angle beam propagation method in the cylindrical coordinate is employed as the modeling tool for simulation and design of the proposed refractometer sensor. The design for a refractometer is presented that shows that the refractometer would have an estimated resolution of 5.4 × 10 5 for refractive indices from 1.33 to 1.45 and of 3.3 × 10 5 for refractive indices from 1.38 to 1.45 through the choice of an appropriate length of the multimode fiber core section.

© 2006 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.0230) Optical devices : Optical devices

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 15, 2005
Revised Manuscript: November 2, 2005
Manuscript Accepted: November 4, 2005

Qian Wang and Gerald Farrell, "All-fiber multimode-interference-based refractometer sensor: proposal and design," Opt. Lett. 31, 317-319 (2006)

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