Polymer optical fiber for large strain measurement based on multimode interference

Authors

Jie Huang, Missouri University of Science and Technology
Xinwei Lan, Missouri University of Science and Technology
Hanzheng Wang, Missouri University of Science and Technology
Lei Yuan, Missouri University of Science and Technology
Tao Wei, University of Rhode Island
Zhan Gao, Missouri University of Science and Technology
Hai Xiao, Missouri University of Science and Technology

Document Type

Article

Date of Original Version

10-15-2012

Abstract

This Letter reports a polymer optical fiber (POF) based large strain sensor based on the multimode interference (MMI) theory for the application of structural health monitoring. A section of POFs is sandwiched between two silica single mode fibers to construct a single-mode-multimode-single-mode structure that produces a MMI spectrum. The strain sensing mechanism of the device was investigated and experimentally verified. A large dynamic range of 2 × 104 με (2%) and a detection limit of 33 με have been demonstrated. © 2012 Optical Society of America.

Publication Title, e.g., Journal

Optics Letters

Volume

37

Issue

20

Citation/Publisher Attribution

Huang, Jie, Xinwei Lan, Hanzheng Wang, Lei Yuan, Tao Wei, Zhan Gao, and Hai Xiao. "Polymer optical fiber for large strain measurement based on multimode interference." Optics Letters 37, 20 (2012): 4308-4310. doi: 10.1364/OL.37.004308.