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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 4049–4052

Simultaneous measurement of refractive index and temperature using multimode microfiber-based dual Mach–Zehnder interferometer

Haipeng Luo, Qizhen Sun, Zhilin Xu, Deming Liu, and Lin Zhang  »View Author Affiliations

Optics Letters, Vol. 39, Issue 13, pp. 4049-4052 (2014)

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A multimode microfiber (MMMF)-based dual Mach–Zehnder interferometer (MZI) is proposed and demonstrated for simultaneous measurement of refractive index (RI) and temperature. By inserting a section of MMMF supporting a few modes in the sensing arm of the MZI setup, an inline interference between the fundamental mode and the high-order mode of MMMF, as well as the interference between the high-order mode of MMMF and the reference arm, i.e., the dual MZI, is realized. Due to different interference mechanisms, the former interferometer achieves RI sensitivity of 2576.584nm/RIU and temperature sensitivity of 0.193nm/°C, while the latter one achieves RI sensitivity of 1001.864nm/RIU and temperature sensitivity of 0.239nm/°C, demonstrating the ability to attain highly accurate multiparameter measurements.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.5330) Nonlinear optics : Photorefractive optics
(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: April 23, 2014
Revised Manuscript: June 3, 2014
Manuscript Accepted: June 5, 2014
Published: June 30, 2014

Haipeng Luo, Qizhen Sun, Zhilin Xu, Deming Liu, and Lin Zhang, "Simultaneous measurement of refractive index and temperature using multimode microfiber-based dual Mach–Zehnder interferometer," Opt. Lett. 39, 4049-4052 (2014)

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