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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 31 — Nov. 1, 2011
  • pp: 6026–6032

Gas Raman sensing with multi-opened-up suspended core fiber

Guanjun Wang, Jiansheng Liu, Yi Yang, Zheng Zheng, Jing Xiao, and Ruichao Li  »View Author Affiliations

Applied Optics, Vol. 50, Issue 31, pp. 6026-6032 (2011)

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Gas sensing and fluid-guiding response properties of a suspended core fiber Raman analyzer with side-opened and strut microfluid-guiding array are explored. A Raman sensing model is introduced for effective mode area optimization and normalized intensity overlap enhancement between Raman sensing light and analyte. Calculations predict that there is a trade-off between the overlap and the effective mode area, while the optimal trade-off depends on the refractive index of the background material, core diameter, and strut’s thickness. Furthermore, the multi-opened-up structure ensures a fast gases diffusing into/out of each hole for real-time Raman sensing. Simulation results confirm a limited gas sensing response time of less than 6 s could be feasible and, thus, a new approach to real-time gas sensing applications is identified.

© 2011 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4005) Fiber optics and optical communications : Microstructured fibers
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 31, 2011
Manuscript Accepted: June 24, 2011
Published: October 31, 2011

Guanjun Wang, Jiansheng Liu, Yi Yang, Zheng Zheng, Jing Xiao, and Ruichao Li, "Gas Raman sensing with multi-opened-up suspended core fiber," Appl. Opt. 50, 6026-6032 (2011)

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